Q: What is the sum of all factors of the number 24,840 excluding 24,840?

A: 61,560

Why is 61,560 the sum of all factors of 24,840, excluding 24,840?

The factors of the number 24,840 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 828, 920, 1035, 1080, 1242, 1380, 1656, 2070, 2484, 2760, 3105, 4140, 4968, 6210, 8280, 12420, 24840.

If you add them up, you will get the total of 24,901. Now subtract 24,840 to get 61,560