Q: What is the sum of all factors of the number 305,890 excluding 305,890?

 A: 293,618

Why is 293,618 the sum of all factors of 305,890, excluding 305,890?

The factors of the number 305,890 are: 1, 2, 5, 10, 13, 26, 65, 130, 169, 181, 338, 362, 845, 905, 1690, 1810, 2353, 4706, 11765, 23530, 30589, 61178, 152945, 305890.

If you add them up, you will get the total of 306,183. Now subtract 305,890 to get 293,618


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