Q: What is the sum of all factors of the number 396,440 excluding 396,440?

A: 653,320

Why is 653,320 the sum of all factors of 396,440, excluding 396,440?

The factors of the number 396,440 are: 1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 53, 55, 68, 85, 88, 106, 110, 136, 170, 187, 212, 220, 265, 340, 374, 424, 440, 530, 583, 680, 748, 901, 935, 1060, 1166, 1496, 1802, 1870, 2120, 2332, 2915, 3604, 3740, 4505, 4664, 5830, 7208, 7480, 9010, 9911, 11660, 18020, 19822, 23320, 36040, 39644, 49555, 79288, 99110, 198220, 396440.

If you add them up, you will get the total of 397,093. Now subtract 396,440 to get 653,320