Q: What is the sum of all factors of the number 220,423,605 excluding 220,423,605?

A: 151,220,811

Why is 151,220,811 the sum of all factors of 220,423,605, excluding 220,423,605?

The factors of the number 220,423,605 are: 1, 3, 5, 15, 23, 69, 103, 115, 309, 345, 515, 1545, 2369, 6203, 7107, 11845, 18609, 31015, 35535, 93045, 142669, 428007, 638909, 713345, 1916727, 2140035, 3194545, 9583635, 14694907, 44084721, 73474535, 220423605.

If you add them up, you will get the total of 220,423,756. Now subtract 220,423,605 to get 151,220,811