Q: What is the sum of all factors of the number 297,120 excluding 297,120?

A: 640,320

Why is 640,320 the sum of all factors of 297,120, excluding 297,120?

The factors of the number 297,120 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, 619, 1238, 1857, 2476, 3095, 3714, 4952, 6190, 7428, 9285, 9904, 12380, 14856, 18570, 19808, 24760, 29712, 37140, 49520, 59424, 74280, 99040, 148560, 297120.

If you add them up, you will get the total of 297,760. Now subtract 297,120 to get 640,320