Q: What is the sum of all factors of the number 321,520 excluding 321,520?

A: 426,200

Why is 426,200 the sum of all factors of 321,520, excluding 321,520?

The factors of the number 321,520 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4019, 8038, 16076, 20095, 32152, 40190, 64304, 80380, 160760, 321520.

If you add them up, you will get the total of 321,946. Now subtract 321,520 to get 426,200

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