Q: What is the sum of all factors of the number 280,960 excluding 280,960?

 A: 392,240

Why is 392,240 the sum of all factors of 280,960, excluding 280,960?

The factors of the number 280,960 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 439, 640, 878, 1756, 2195, 3512, 4390, 7024, 8780, 14048, 17560, 28096, 35120, 56192, 70240, 140480, 280960.

If you add them up, you will get the total of 281,352. Now subtract 280,960 to get 392,240


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