Q: What is the sum of all factors of the number 231,616,515 excluding 231,616,515?

A: 170,567,421

Why is 170,567,421 the sum of all factors of 231,616,515, excluding 231,616,515?

The factors of the number 231,616,515 are: 1, 3, 5, 13, 15, 39, 65, 131, 195, 393, 655, 1703, 1965, 5109, 8515, 9067, 25545, 27201, 45335, 117871, 136005, 353613, 589355, 1187777, 1768065, 3563331, 5938885, 15441101, 17816655, 46323303, 77205505, 231616515.

If you add them up, you will get the total of 231,616,685. Now subtract 231,616,515 to get 170,567,421