Q: What is the sum of all factors of the number 210,540 excluding 210,540?

A: 459,780

Why is 459,780 the sum of all factors of 210,540, excluding 210,540?

The factors of the number 210,540 are: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 29, 30, 33, 44, 55, 58, 60, 66, 87, 110, 116, 121, 132, 145, 165, 174, 220, 242, 290, 319, 330, 348, 363, 435, 484, 580, 605, 638, 660, 726, 870, 957, 1210, 1276, 1452, 1595, 1740, 1815, 1914, 2420, 3190, 3509, 3630, 3828, 4785, 6380, 7018, 7260, 9570, 10527, 14036, 17545, 19140, 21054, 35090, 42108, 52635, 70180, 105270, 210540.

If you add them up, you will get the total of 210,999. Now subtract 210,540 to get 459,780