Q: What is the sum of all factors of the number 427,875 excluding 427,875?

 A: 390,813

Why is 390,813 the sum of all factors of 427,875, excluding 427,875?

The factors of the number 427,875 are: 1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 163, 175, 375, 489, 525, 815, 875, 1141, 2445, 2625, 3423, 4075, 5705, 12225, 17115, 20375, 28525, 61125, 85575, 142625, 427875.

If you add them up, you will get the total of 428,265. Now subtract 427,875 to get 390,813


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