题解 | #完全数计算#

while True:
    try:
        n = int(input())
        count = 0
        for i in range(1, n+1):
            temp = []
            for j in range(1, i):
                if i % j == 0:
                    temp.append(j)
            if sum(temp) == i:
                count += 1
        print(count)
    except:
        break