Q: What is the sum of all factors of the number 640,654 excluding 640,654?

 A: 475,634

Why is 475,634 the sum of all factors of 640,654, excluding 640,654?

The factors of the number 640,654 are: 1, 2, 7, 14, 67, 134, 469, 683, 938, 1366, 4781, 9562, 45761, 91522, 320327, 640654.

If you add them up, you will get the total of 641,129. Now subtract 640,654 to get 475,634


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