Q: What is the sum of all factors of the number 243,135,640 excluding 243,135,640?

A: 353,652,920

Why is 353,652,920 the sum of all factors of 243,135,640, excluding 243,135,640?

The factors of the number 243,135,640 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 552581, 1105162, 2210324, 2762905, 4420648, 5525810, 6078391, 11051620, 12156782, 22103240, 24313564, 30391955, 48627128, 60783910, 121567820, 243135640.

If you add them up, you will get the total of 243,135,993. Now subtract 243,135,640 to get 353,652,920