Q: What is the sum of all factors of the number 420,264,225 excluding 420,264,225?

A: 376,761,771

Why is 376,761,771 the sum of all factors of 420,264,225, excluding 420,264,225?

The factors of the number 420,264,225 are: 1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 109873, 329619, 549365, 988857, 1648095, 1867841, 2746825, 4944285, 5603523, 8240475, 9339205, 16810569, 24721425, 28017615, 46696025, 84052845, 140088075, 420264225.

If you add them up, you will get the total of 420,264,601. Now subtract 420,264,225 to get 376,761,771