Q: What is the sum of all factors of the number 389,689,680 excluding 389,689,680?

A: 818,349,072

Why is 818,349,072 the sum of all factors of 389,689,680, excluding 389,689,680?

The factors of the number 389,689,680 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1623707, 3247414, 4871121, 6494828, 8118535, 9742242, 12989656, 16237070, 19484484, 24355605, 25979312, 32474140, 38968968, 48711210, 64948280, 77937936, 97422420, 129896560, 194844840, 389689680.

If you add them up, you will get the total of 389,690,498. Now subtract 389,689,680 to get 818,349,072