def is_abundant(n): lst = factors(n) lst.remove(n) if sum(lst) > n: return True return False
# Finds the first triangular number with over 500 divisors. # Copyright (C) 2010 Santiago Alessandri # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # # You can contact me at [email protected] # Visit my wiki at http://san-ss.wikidot.com ######################################################################## from CommonFunctions import factors if __name__ == '__main__': i = 5 triangle = i * (i + 1) // 2 divisors = factors(triangle) while len(divisors) <= 500: i += 1 triangle = i * (i + 1) // 2 divisors = factors(triangle) print("The result is:", triangle)
# Finds the first triangular number with over 500 divisors. # Copyright (C) 2010 Santiago Alessandri # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. # # You can contact me at [email protected] # Visit my wiki at http://san-ss.wikidot.com ######################################################################## from CommonFunctions import factors if __name__ == '__main__': i = 5 triangle = i * (i + 1) // 2 divisors = factors(triangle) while len(divisors) <= 500: i += 1 triangle = i * (i + 1) // 2 divisors = factors(triangle) print("The result is:", triangle)
def is_abundant(n): lst = factors(n) lst.remove(n) if sum(lst) > n: return True return False