Q: What is the sum of all factors of the number 405,560,442 excluding 405,560,442?

A: 529,949,958

Why is 529,949,958 the sum of all factors of 405,560,442, excluding 405,560,442?

The factors of the number 405,560,442 are: 1, 2, 3, 6, 7, 14, 21, 42, 109, 218, 327, 654, 763, 1526, 2289, 4578, 88589, 177178, 265767, 531534, 620123, 1240246, 1860369, 3720738, 9656201, 19312402, 28968603, 57937206, 67593407, 135186814, 202780221, 405560442.

If you add them up, you will get the total of 405,560,971. Now subtract 405,560,442 to get 529,949,958