Q: What is the sum of all factors of the number 1,283,620 excluding 1,283,620?

 A: 1,619,924

Why is 1,619,924 the sum of all factors of 1,283,620, excluding 1,283,620?

The factors of the number 1,283,620 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4937, 9874, 19748, 24685, 49370, 64181, 98740, 128362, 256724, 320905, 641810, 1283620.

If you add them up, you will get the total of 1,283,621. Now subtract 1,283,620 to get 1,619,924


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