Q: What is the sum of all factors of the number 153,280 excluding 153,280?

 A: 212,480

Why is 212,480 the sum of all factors of 153,280, excluding 153,280?

The factors of the number 153,280 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 479, 958, 1916, 2395, 3832, 4790, 7664, 9580, 15328, 19160, 30656, 38320, 76640, 153280.

If you add them up, you will get the total of 153,492. Now subtract 153,280 to get 212,480


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