Q: What is the sum of all factors of the number 30,960 excluding 30,960?

A: 75,432

Why is 75,432 the sum of all factors of 30,960, excluding 30,960?

The factors of the number 30,960 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 10320, 15480, 30960.

If you add them up, you will get the total of 31,035. Now subtract 30,960 to get 75,432