Q: What is the sum of all factors of the number 220,428 excluding 220,428?

A: 398,932

Why is 398,932 the sum of all factors of 220,428, excluding 220,428?

The factors of the number 220,428 are: 1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 157, 234, 314, 351, 468, 471, 628, 702, 942, 1404, 1413, 1884, 2041, 2826, 4082, 4239, 5652, 6123, 8164, 8478, 12246, 16956, 18369, 24492, 36738, 55107, 73476, 110214, 220428.

If you add them up, you will get the total of 220,826. Now subtract 220,428 to get 398,932