Q: What is the sum of all factors of the number 720,350,085 excluding 720,350,085?

A: 698,188,155

Why is 698,188,155 the sum of all factors of 720,350,085, excluding 720,350,085?

The factors of the number 720,350,085 are: 1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 527729, 1583187, 2638645, 3694103, 6860477, 7915935, 11082309, 18470515, 20581431, 34302385, 48023339, 55411545, 102907155, 144070017, 240116695, 720350085.

If you add them up, you will get the total of 720,350,783. Now subtract 720,350,085 to get 698,188,155