Q: What is the sum of all factors of the number 111,321,340 excluding 111,321,340?

A: 144,599,780

Why is 144,599,780 the sum of all factors of 111,321,340, excluding 111,321,340?

The factors of the number 111,321,340 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3965, 7019, 7930, 14038, 15860, 28076, 35095, 70190, 91247, 140380, 182494, 364988, 428159, 456235, 856318, 912470, 1712636, 1824940, 2140795, 4281590, 5566067, 8563180, 11132134, 22264268, 27830335, 55660670, 111321340.

If you add them up, you will get the total of 111,321,484. Now subtract 111,321,340 to get 144,599,780