一个数如果恰好等于它的因子之和，这个数就称为“完数”。例如 6=1＋2＋3.编程找出 1000 以内的所有完数。
perfect_number_list = []
for perfect_number in range(2, 1000):
# 找出一个数的所有因子，加入到因数列表里
factor_list = []
for factor in range(1, perfect_number):
if perfect_number % factor == 0:
factor_list.append(factor)
# 求出这个数的因子之和，用summing表示
summing = 0
for i in range(len(factor_list)):
summing += factor_list[i]
# 判断这个数和因子之和是否相等
if perfect_number == summing:
perfect_number_list.append(perfect_number)
for i in range(len(factor_list)):
if i == 0:
print(f'{perfect_number} = {factor_list[i]}', end='')
if 0 < i <= len(factor_list) - 1:
print(f'+{factor_list[i]}', end='')
print('\n')
print(f'1000以内的所有完数有：{perfect_number_list}')
标签：perfect,编程,list,number,range,完数,factor,1000 From： https://www.cnblogs.com/sangern/p/17404503.html