Q: What is the sum of all factors of the number 105,420,300 excluding 105,420,300?

A: 199,596,636

Why is 199,596,636 the sum of all factors of 105,420,300, excluding 105,420,300?

The factors of the number 105,420,300 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 300, 351401, 702802, 1054203, 1405604, 1757005, 2108406, 3514010, 4216812, 5271015, 7028020, 8785025, 10542030, 17570050, 21084060, 26355075, 35140100, 52710150, 105420300.

If you add them up, you will get the total of 105,420,499. Now subtract 105,420,300 to get 199,596,636