Q: What is the sum of all factors of the number 666,660,129 excluding 666,660,129?

 A: 278,372,703

Why is 278,372,703 the sum of all factors of 666,660,129, excluding 666,660,129?

The factors of the number 666,660,129 are: 1, 3, 23, 53, 69, 159, 1219, 3657, 182297, 546891, 4192831, 9661741, 12578493, 28985223, 222220043, 666660129.

If you add them up, you will get the total of 666,660,407. Now subtract 666,660,129 to get 278,372,703


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