Q: What is the sum of all factors of the number 640,410 excluding 640,410?

 A: 896,646

Why is 896,646 the sum of all factors of 640,410, excluding 640,410?

The factors of the number 640,410 are: 1, 2, 3, 5, 6, 10, 15, 30, 21347, 42694, 64041, 106735, 128082, 213470, 320205, 640410.

If you add them up, you will get the total of 641,306. Now subtract 640,410 to get 896,646


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