Q: What is the sum of all factors of the number 65,160 excluding 65,160?

A: 147,780

Why is 147,780 the sum of all factors of 65,160, excluding 65,160?

The factors of the number 65,160 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 181, 360, 362, 543, 724, 905, 1086, 1448, 1629, 1810, 2172, 2715, 3258, 3620, 4344, 5430, 6516, 7240, 8145, 10860, 13032, 16290, 21720, 32580, 65160.

If you add them up, you will get the total of 65,307. Now subtract 65,160 to get 147,780