Q: What is the sum of all factors of the number 431,540,505 excluding 431,540,505?

A: 390,080,295

Why is 390,080,295 the sum of all factors of 431,540,505, excluding 431,540,505?

The factors of the number 431,540,505 are: 1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 149, 165, 447, 495, 745, 1341, 1639, 2235, 4917, 5851, 6705, 8195, 14751, 17553, 24585, 29255, 52659, 64361, 73755, 87765, 193083, 263295, 321805, 579249, 871799, 965415, 2615397, 2896245, 4358995, 7846191, 9589789, 13076985, 28769367, 39230955, 47948945, 86308101, 143846835, 431540505.

If you add them up, you will get the total of 431,540,895. Now subtract 431,540,505 to get 390,080,295