Q: What is the sum of all factors of the number 402,201,020 excluding 402,201,020?

Why is 507,392,644 the sum of all factors of 402,201,020, excluding 402,201,020?

The factors of the number 402,201,020 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1546927, 3093854, 6187708, 7734635, 15469270, 20110051, 30938540, 40220102, 80440204, 100550255, 201100510, 402201020.

If you add them up, you will get the total of 402,201,527. Now subtract 402,201,020 to get 507,392,644

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