Q: What is the sum of all factors of the number 423,890 excluding 423,890?
A: 422,830
The factors of the number 423,890 are: 1, 2, 5, 10, 19, 23, 38, 46, 95, 97, 115, 190, 194, 230, 437, 485, 874, 970, 1843, 2185, 2231, 3686, 4370, 4462, 9215, 11155, 18430, 22310, 42389, 84778, 211945, 423890.
If you add them up, you will get the total of 424,312. Now subtract 423,890 to get 422,830