Q: What is the sum of all factors of the number 15,505,220 excluding 15,505,220?

A: 19,428,028

Why is 19,428,028 the sum of all factors of 15,505,220, excluding 15,505,220?

The factors of the number 15,505,220 are: 1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 911, 1702, 1822, 3404, 3644, 4255, 4555, 8510, 9110, 17020, 18220, 20953, 33707, 41906, 67414, 83812, 104765, 134828, 168535, 209530, 337070, 419060, 674140, 775261, 1550522, 3101044, 3876305, 7752610, 15505220.

If you add them up, you will get the total of 15,505,239. Now subtract 15,505,220 to get 19,428,028