Q: What is the sum of all factors of the number 72,777,780 excluding 72,777,780?

A: 147,982,032

Why is 147,982,032 the sum of all factors of 72,777,780, excluding 72,777,780?

The factors of the number 72,777,780 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 404321, 808642, 1212963, 1617284, 2021605, 2425926, 3638889, 4043210, 4851852, 6064815, 7277778, 8086420, 12129630, 14555556, 18194445, 24259260, 36388890, 72777780.

If you add them up, you will get the total of 72,777,927. Now subtract 72,777,780 to get 147,982,032