题解 | #完全数计算#

# 判断一个数是不是完全数
def wq(n):
    flag = False
    num = 0  # 存储整数n的约数的和
    for i in range(1, n):
        if n % i == 0:
            num += i
    if num == n:
        flag = True
    return flag

while True:
    try:
        n = int(input())
        re = 0 # 存储完全数的个数
        for i in range(1, n + 1):
            if wq(i):
                re += 1
        print(re)
    except:
        break