Q: What is the sum of all factors of the number 515,220 excluding 515,220?

A: 979,308

Why is 979,308 the sum of all factors of 515,220, excluding 515,220?

The factors of the number 515,220 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 277, 310, 372, 465, 554, 620, 831, 930, 1108, 1385, 1662, 1860, 2770, 3324, 4155, 5540, 8310, 8587, 16620, 17174, 25761, 34348, 42935, 51522, 85870, 103044, 128805, 171740, 257610, 515220.

If you add them up, you will get the total of 516,199. Now subtract 515,220 to get 979,308