题解 | #完全数计算#

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