Q: What is the sum of all factors of the number 7,865 excluding 7,865?
A: 3,307
The factors of the number 7,865 are: 1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 7865.
If you add them up, you will get the total of 7,868. Now subtract 7,865 to get 3,307