Q: What is the sum of all factors of the number 640,004 excluding 640,004?

 A: 480,010

Why is 480,010 the sum of all factors of 640,004, excluding 640,004?

The factors of the number 640,004 are: 1, 2, 4, 160001, 320002, 640004.

If you add them up, you will get the total of 640,484. Now subtract 640,004 to get 480,010


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