Q: What is the sum of all factors of the number 165,900 excluding 165,900?

A: 389,620

Why is 389,620 the sum of all factors of 165,900, excluding 165,900?

The factors of the number 165,900 are: 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 79, 84, 100, 105, 140, 150, 158, 175, 210, 237, 300, 316, 350, 395, 420, 474, 525, 553, 700, 790, 948, 1050, 1106, 1185, 1580, 1659, 1975, 2100, 2212, 2370, 2765, 3318, 3950, 4740, 5530, 5925, 6636, 7900, 8295, 11060, 11850, 13825, 16590, 23700, 27650, 33180, 41475, 55300, 82950, 165900.

If you add them up, you will get the total of 166,289. Now subtract 165,900 to get 389,620