Q: What is the sum of all factors of the number 321,120 excluding 321,120?

A: 779,616

Why is 779,616 the sum of all factors of 321,120, excluding 321,120?

The factors of the number 321,120 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 223, 240, 288, 360, 446, 480, 669, 720, 892, 1115, 1338, 1440, 1784, 2007, 2230, 2676, 3345, 3568, 4014, 4460, 5352, 6690, 7136, 8028, 8920, 10035, 10704, 13380, 16056, 17840, 20070, 21408, 26760, 32112, 35680, 40140, 53520, 64224, 80280, 107040, 160560, 321120.

If you add them up, you will get the total of 321,899. Now subtract 321,120 to get 779,616