Q: What is the sum of all factors of the number 640,313,470 excluding 640,313,470?

 A: 512,612,738

Why is 512,612,738 the sum of all factors of 640,313,470, excluding 640,313,470?

The factors of the number 640,313,470 are: 1, 2, 5, 10, 3967, 7934, 16141, 19835, 32282, 39670, 80705, 161410, 64031347, 128062694, 320156735, 640313470.

If you add them up, you will get the total of 640,313,982. Now subtract 640,313,470 to get 512,612,738


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