Q: What is the sum of all factors of the number 163,780 excluding 163,780?
A: 199,100
The factors of the number 163,780 are: 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 431, 862, 1724, 2155, 4310, 8189, 8620, 16378, 32756, 40945, 81890, 163780.
If you add them up, you will get the total of 163,979. Now subtract 163,780 to get 199,100