Q: What is the sum of all factors of the number 513,566,420 excluding 513,566,420?

Why is 572,801,044 the sum of all factors of 513,566,420, excluding 513,566,420?

The factors of the number 513,566,420 are: 1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 187433, 374866, 749732, 937165, 1874330, 3748660, 25678321, 51356642, 102713284, 128391605, 256783210, 513566420.

If you add them up, you will get the total of 513,566,992. Now subtract 513,566,420 to get 572,801,044

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