Q: What is the sum of all factors of the number 856,890 excluding 856,890?
A: 1,371,258
The factors of the number 856,890 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 9521, 19042, 28563, 47605, 57126, 85689, 95210, 142815, 171378, 285630, 428445, 856890.
If you add them up, you will get the total of 856,891. Now subtract 856,890 to get 1,371,258