Q: What is the sum of all factors of the number 11,220 excluding 11,220?

A: 25,068

Why is 25,068 the sum of all factors of 11,220, excluding 11,220?

The factors of the number 11,220 are: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 132, 165, 170, 187, 204, 220, 255, 330, 340, 374, 510, 561, 660, 748, 935, 1020, 1122, 1870, 2244, 2805, 3740, 5610, 11220.

If you add them up, you will get the total of 11,245. Now subtract 11,220 to get 25,068