Q: What is the sum of all factors of the number 5,221,120 excluding 5,221,120?

A: 7,288,160

Why is 7,288,160 the sum of all factors of 5,221,120, excluding 5,221,120?

The factors of the number 5,221,120 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 4079, 8158, 16316, 20395, 32632, 40790, 65264, 81580, 130528, 163160, 261056, 326320, 522112, 652640, 1044224, 1305280, 2610560, 5221120.

If you add them up, you will get the total of 5,221,127. Now subtract 5,221,120 to get 7,288,160