Q: What is the sum of all factors of the number 321,540 excluding 321,540?

A: 621,948

Why is 621,948 the sum of all factors of 321,540, excluding 321,540?

The factors of the number 321,540 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 233, 276, 345, 460, 466, 690, 699, 932, 1165, 1380, 1398, 2330, 2796, 3495, 4660, 5359, 6990, 10718, 13980, 16077, 21436, 26795, 32154, 53590, 64308, 80385, 107180, 160770, 321540.

If you add them up, you will get the total of 322,161. Now subtract 321,540 to get 621,948