Python 一个数如果恰好等于它的因子之和，这个数就称为"完数

from functools import reduce

def sum(a,b):

    return a+b

for iin range(2,1001):

    l = [1]

    for jin range(2,int(i/2+1)):

        if i%j ==0:

        l.append(j)

    if i == reduce(sum,l):

        print(i)

        print(l)