Q: What is the sum of all factors of the number 409,420 excluding 409,420?

 A: 529,028

Why is 529,028 the sum of all factors of 409,420, excluding 409,420?

The factors of the number 409,420 are: 1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1861, 3722, 7444, 9305, 18610, 20471, 37220, 40942, 81884, 102355, 204710, 409420.

If you add them up, you will get the total of 409,949. Now subtract 409,420 to get 529,028


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