Q: What is the sum of all factors of the number 1,209,375 excluding 1,209,375?
A: 1,024,857
The factors of the number 1,209,375 are: 1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 215, 225, 375, 387, 625, 645, 1075, 1125, 1875, 1935, 3125, 3225, 5375, 5625, 9375, 9675, 16125, 26875, 28125, 48375, 80625, 134375, 241875, 403125, 1209375.
If you add them up, you will get the total of 1,209,376. Now subtract 1,209,375 to get 1,024,857