Q: What is the sum of all factors of the number 660,720,870 excluding 660,720,870?

A: 1,076,476,410

Why is 1,076,476,410 the sum of all factors of 660,720,870, excluding 660,720,870?

The factors of the number 660,720,870 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2670, 4005, 8010, 82487, 164974, 247461, 412435, 494922, 742383, 824870, 1237305, 1484766, 2474610, 3711915, 7341343, 7423830, 14682686, 22024029, 36706715, 44048058, 66072087, 73413430, 110120145, 132144174, 220240290, 330360435, 660720870.

If you add them up, you will get the total of 660,720,871. Now subtract 660,720,870 to get 1,076,476,410