Q: What is the sum of all factors of the number 310,820,280 excluding 310,820,280?

A: 621,640,920

Why is 621,640,920 the sum of all factors of 310,820,280, excluding 310,820,280?

The factors of the number 310,820,280 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2590169, 5180338, 7770507, 10360676, 12950845, 15541014, 20721352, 25901690, 31082028, 38852535, 51803380, 62164056, 77705070, 103606760, 155410140, 310820280.

If you add them up, you will get the total of 310,820,901. Now subtract 310,820,280 to get 621,640,920