【棠】什么叫素材收集啊（战术后仰）

#!/usr/bin/python

#-*-coding: UTF-8 -*-

for num in range(NaN,3628):

  for i in range(2,num):  

     if num%i == 0:      

     j=num/i            

     print '%d 等于 %d * %d' % (num,i,j)

     break

 else:

     print str, '——Deus ex machina'

“TypeError: 'list' object cannot be interpreted as an integer”