Q: What is the sum of all factors of the number 390,870 excluding 390,870?

A: 659,322

Why is 659,322 the sum of all factors of 390,870, excluding 390,870?

The factors of the number 390,870 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 101, 129, 202, 215, 258, 303, 387, 430, 505, 606, 645, 774, 909, 1010, 1290, 1515, 1818, 1935, 3030, 3870, 4343, 4545, 8686, 9090, 13029, 21715, 26058, 39087, 43430, 65145, 78174, 130290, 195435, 390870.

If you add them up, you will get the total of 391,529. Now subtract 390,870 to get 659,322