Q: What is the sum of all factors of the number 720,320 excluding 720,320?

 A: 995,704

Why is 995,704 the sum of all factors of 720,320, excluding 720,320?

The factors of the number 720,320 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 2251, 4502, 9004, 11255, 18008, 22510, 36016, 45020, 72032, 90040, 144064, 180080, 360160, 720320.

If you add them up, you will get the total of 721,315. Now subtract 720,320 to get 995,704


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