Q: What is the sum of all factors of the number 13,525,760 excluding 13,525,760?

A: 18,875,728

Why is 18,875,728 the sum of all factors of 13,525,760, excluding 13,525,760?

The factors of the number 13,525,760 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 10567, 21134, 42268, 52835, 84536, 105670, 169072, 211340, 338144, 422680, 676288, 845360, 1352576, 1690720, 2705152, 3381440, 6762880, 13525760.

If you add them up, you will get the total of 13,525,778. Now subtract 13,525,760 to get 18,875,728