Q: What is the sum of all factors of the number 1,575 excluding 1,575?
A: 1,649
The factors of the number 1,575 are: 1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575.
If you add them up, you will get the total of 1,576. Now subtract 1,575 to get 1,649