Q: What is the sum of all factors of the number 25,405,308 excluding 25,405,308?

A: 39,288,412

Why is 39,288,412 the sum of all factors of 25,405,308, excluding 25,405,308?

The factors of the number 25,405,308 are: 1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 5004, 5077, 10154, 15231, 20308, 30462, 45693, 60924, 91386, 182772, 705703, 1411406, 2117109, 2822812, 4234218, 6351327, 8468436, 12702654, 25405308.

If you add them up, you will get the total of 25,405,347. Now subtract 25,405,308 to get 39,288,412