Q: What is the sum of all factors of the number 121,980 excluding 121,980?

A: 240,900

Why is 240,900 the sum of all factors of 121,980, excluding 121,980?

The factors of the number 121,980 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 107, 114, 190, 214, 228, 285, 321, 380, 428, 535, 570, 642, 1070, 1140, 1284, 1605, 2033, 2140, 3210, 4066, 6099, 6420, 8132, 10165, 12198, 20330, 24396, 30495, 40660, 60990, 121980.

If you add them up, you will get the total of 122,220. Now subtract 121,980 to get 240,900