Q: What is the sum of all factors of the number 129,015 excluding 129,015?

 A: 103,113

Why is 103,113 the sum of all factors of 129,015, excluding 129,015?

The factors of the number 129,015 are: 1, 3, 5, 9, 15, 45, 47, 61, 141, 183, 235, 305, 423, 549, 705, 915, 2115, 2745, 2867, 8601, 14335, 25803, 43005, 129015.

If you add them up, you will get the total of 129,118. Now subtract 129,015 to get 103,113


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