Q: What is the sum of all factors of the number 721,020 excluding 721,020?

A: 1,341,348

Why is 1,341,348 the sum of all factors of 721,020, excluding 721,020?

The factors of the number 721,020 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 197, 244, 305, 366, 394, 591, 610, 732, 788, 915, 985, 1182, 1220, 1830, 1970, 2364, 2955, 3660, 3940, 5910, 11820, 12017, 24034, 36051, 48068, 60085, 72102, 120170, 144204, 180255, 240340, 360510, 721020.

If you add them up, you will get the total of 721,021. Now subtract 721,020 to get 1,341,348