Q: What is the sum of all factors of the number 261,890 excluding 261,890?
A: 209,530
The factors of the number 261,890 are: 1, 2, 5, 10, 26189, 52378, 130945, 261890.
If you add them up, you will get the total of 262,099. Now subtract 261,890 to get 209,530