Q: What is the sum of all factors of the number 109,920 excluding 109,920?

A: 237,840

Why is 237,840 the sum of all factors of 109,920, excluding 109,920?

The factors of the number 109,920 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 229, 240, 458, 480, 687, 916, 1145, 1374, 1832, 2290, 2748, 3435, 3664, 4580, 5496, 6870, 7328, 9160, 10992, 13740, 18320, 21984, 27480, 36640, 54960, 109920.

If you add them up, you will get the total of 110,157. Now subtract 109,920 to get 237,840