Q: What is the sum of all factors of the number 400,240 excluding 400,240?

A: 530,504

Why is 530,504 the sum of all factors of 400,240, excluding 400,240?

The factors of the number 400,240 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5003, 10006, 20012, 25015, 40024, 50030, 80048, 100060, 200120, 400240.

If you add them up, you will get the total of 400,770. Now subtract 400,240 to get 530,504

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