Q: What is the sum of all factors of the number 28,380 excluding 28,380?

A: 60,324

Why is 60,324 the sum of all factors of 28,380, excluding 28,380?

The factors of the number 28,380 are: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 43, 44, 55, 60, 66, 86, 110, 129, 132, 165, 172, 215, 220, 258, 330, 430, 473, 516, 645, 660, 860, 946, 1290, 1419, 1892, 2365, 2580, 2838, 4730, 5676, 7095, 9460, 14190, 28380.

If you add them up, you will get the total of 28,440. Now subtract 28,380 to get 60,324