Q: What is the sum of all factors of the number 392,780 excluding 392,780?
A: 453,940
The factors of the number 392,780 are: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 479, 820, 958, 1916, 2395, 4790, 9580, 19639, 39278, 78556, 98195, 196390, 392780.
If you add them up, you will get the total of 393,233. Now subtract 392,780 to get 453,940