题解 | #完全数计算#

循环嵌套

while True:
    try:
      a=int(input())
      d=0
      for x in range(1,a+1,1):
           b=[]
           c=0
           for i in range(1,x,1):
               if (x%i==0):
                   b.append(i)

           for num in b:
               c=c+num

           if(c==x):
               d=d+1
      print(d)
    except:
        break