Q: What is the sum of all factors of the number 4,243,125 excluding 4,243,125?

A: 3,154,507

Why is 3,154,507 the sum of all factors of 4,243,125, excluding 4,243,125?

The factors of the number 4,243,125 are: 1, 3, 5, 15, 25, 31, 73, 75, 93, 125, 155, 219, 365, 375, 465, 625, 775, 1095, 1825, 1875, 2263, 2325, 3875, 5475, 6789, 9125, 11315, 11625, 19375, 27375, 33945, 45625, 56575, 58125, 136875, 169725, 282875, 848625, 1414375, 4243125.

If you add them up, you will get the total of 4,243,128. Now subtract 4,243,125 to get 3,154,507