Q: What is the sum of all factors of the number 280,008,885 including 280,008,885?

A: 494,258,688

Why is 494,258,688 the sum of all factors of 280,008,885, including 280,008,885?

The factors of the number 280,008,885 are: 1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2665, 7995, 35023, 105069, 175115, 455299, 525345, 1365897, 1435943, 2276495, 4307829, 6829485, 7179715, 18667259, 21539145, 56001777, 93336295, 280008885.

If you add them up, you will get the total of 494,258,688.