Q: What is the sum of all factors of the number 345,120 excluding 345,120?

A: 743,520

Why is 743,520 the sum of all factors of 345,120, excluding 345,120?

The factors of the number 345,120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 719, 1438, 2157, 2876, 3595, 4314, 5752, 7190, 8628, 10785, 11504, 14380, 17256, 21570, 23008, 28760, 34512, 43140, 57520, 69024, 86280, 115040, 172560, 345120.

If you add them up, you will get the total of 345,863. Now subtract 345,120 to get 743,520