题解 | #完全数计算#
完全数计算
https://www.nowcoder.com/practice/7299c12e6abb437c87ad3e712383ff84
# 20241011
def f(x):
ls = []
for i in range(1, x + 1): # 注意求完全数时这个范围
if x % i == 0:
ls.append(i)
# print(ls)
del ls[-1] # 删除自己
# print(ls)
if sum(ls) == x:
return True
return False
n = int(input())
c = 0
for i in range(1, n + 1):
if f(i):
c += 1
print(c)
