Q: What is the sum of all factors of the number 428,820 excluding 428,820?

A: 944,748

Why is 944,748 the sum of all factors of 428,820, excluding 428,820?

The factors of the number 428,820 are: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1021, 2042, 3063, 4084, 5105, 6126, 7147, 10210, 12252, 14294, 15315, 20420, 21441, 28588, 30630, 35735, 42882, 61260, 71470, 85764, 107205, 142940, 214410, 428820.

If you add them up, you will get the total of 429,764. Now subtract 428,820 to get 944,748