Q: What is the sum of all factors of the number 326,820 excluding 326,820?

A: 661,020

Why is 661,020 the sum of all factors of 326,820, excluding 326,820?

The factors of the number 326,820 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 419, 780, 838, 1257, 1676, 2095, 2514, 4190, 5028, 5447, 6285, 8380, 10894, 12570, 16341, 21788, 25140, 27235, 32682, 54470, 65364, 81705, 108940, 163410, 326820.

If you add them up, you will get the total of 327,481. Now subtract 326,820 to get 661,020