Q: What is the sum of all factors of the number 25,800 excluding 25,800?

A: 56,040

Why is 56,040 the sum of all factors of 25,800, excluding 25,800?

The factors of the number 25,800 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 43, 50, 60, 75, 86, 100, 120, 129, 150, 172, 200, 215, 258, 300, 344, 430, 516, 600, 645, 860, 1032, 1075, 1290, 1720, 2150, 2580, 3225, 4300, 5160, 6450, 8600, 12900, 25800.

If you add them up, you will get the total of 25,856. Now subtract 25,800 to get 56,040