Q: What is the sum of all factors of the number 640,074 excluding 640,074?

 A: 653,334

Why is 653,334 the sum of all factors of 640,074, excluding 640,074?

The factors of the number 640,074 are: 1, 2, 3, 6, 107, 214, 321, 642, 997, 1994, 2991, 5982, 106679, 213358, 320037, 640074.

If you add them up, you will get the total of 640,727. Now subtract 640,074 to get 653,334


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