Q: What is the sum of all factors of the number 25,440 excluding 25,440?

A: 56,208

Why is 56,208 the sum of all factors of 25,440, excluding 25,440?

The factors of the number 25,440 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 80, 96, 106, 120, 159, 160, 212, 240, 265, 318, 424, 480, 530, 636, 795, 848, 1060, 1272, 1590, 1696, 2120, 2544, 3180, 4240, 5088, 6360, 8480, 12720, 25440.

If you add them up, you will get the total of 25,496. Now subtract 25,440 to get 56,208