Q: What is the sum of all factors of the number 660,321,438 excluding 660,321,438?

A: 865,951,842

Why is 865,951,842 the sum of all factors of 660,321,438, excluding 660,321,438?

The factors of the number 660,321,438 are: 1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 534, 623, 1246, 1869, 3738, 176651, 353302, 529953, 1059906, 1236557, 2473114, 3709671, 7419342, 15721939, 31443878, 47165817, 94331634, 110053573, 220107146, 330160719, 660321438.

If you add them up, you will get the total of 660,322,303. Now subtract 660,321,438 to get 865,951,842