Q: What is the sum of all factors of the number 640,450 excluding 640,450?
A: 550,880
The factors of the number 640,450 are: 1, 2, 5, 10, 25, 50, 12809, 25618, 64045, 128090, 320225, 640450.
If you add them up, you will get the total of 641,000. Now subtract 640,450 to get 550,880