Q: What is the sum of all factors of the number 7,120,100 excluding 7,120,100?

A: 9,522,064

Why is 9,522,064 the sum of all factors of 7,120,100, excluding 7,120,100?

The factors of the number 7,120,100 are: 1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 5477, 10954, 21908, 27385, 54770, 71201, 109540, 136925, 142402, 273850, 284804, 356005, 547700, 712010, 1424020, 1780025, 3560050, 7120100.

If you add them up, you will get the total of 7,120,109. Now subtract 7,120,100 to get 9,522,064