/in/foo.c:1:1: warning: data definition has no type or storage class
    1 | n = int(input())
      | ^
/in/foo.c:1:1: warning: type defaults to 'int' in declaration of 'n' [-Wimplicit-int]
/in/foo.c:1:5: error: expected expression before 'int'
    1 | n = int(input())
      |     ^~~
/in/foo.c:5:27: error: stray '#' in program
    5 |         if num % i == 0:  # 如果i是num的因子
      |                           ^
/in/foo.c:6:34: error: stray '#' in program
    6 |             sum_of_factors += i  # 累加到因子和中
      |                                  ^
/in/foo.c:8:21: error: stray '#' in program
    8 |         print(num)  # 输出完数
      |                     ^