题解 | 完全数计算
完全数计算
https://www.nowcoder.com/practice/7299c12e6abb437c87ad3e712383ff84
from math import sqrt
import math
num = int(input())
count = 0
for i in range(2,num):
zhi = []
qrt = i//2
#print(i,qrt)
for j in range(1,qrt+1):
#print(i,j)
if i % j == 0:
zhi.append(j)
if sum(zhi) == i:
#print(i,qrt,zhi)
count += 1
print(count)
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