Q: What is the sum of all factors of the number 640,371 excluding 640,371?
A: 221,469
The factors of the number 640,371 are: 1, 3, 113, 339, 1889, 5667, 213457, 640371.
If you add them up, you will get the total of 640,592. Now subtract 640,371 to get 221,469