Q: What is the sum of all factors of the number 309,270 excluding 309,270?

A: 507,642

Why is 507,642 the sum of all factors of 309,270, excluding 309,270?

The factors of the number 309,270 are: 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 169, 183, 195, 305, 338, 366, 390, 507, 610, 793, 845, 915, 1014, 1586, 1690, 1830, 2379, 2535, 3965, 4758, 5070, 7930, 10309, 11895, 20618, 23790, 30927, 51545, 61854, 103090, 154635, 309270.

If you add them up, you will get the total of 309,777. Now subtract 309,270 to get 507,642