Q: What is the sum of all factors of the number 1,720,240 excluding 1,720,240?

 A: 2,279,504

Why is 2,279,504 the sum of all factors of 1,720,240, excluding 1,720,240?

The factors of the number 1,720,240 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21503, 43006, 86012, 107515, 172024, 215030, 344048, 430060, 860120, 1720240.

If you add them up, you will get the total of 1,720,242. Now subtract 1,720,240 to get 2,279,504


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