Q: What is the sum of all factors of the number 161,235,120 excluding 161,235,120?

 A: 340,018,512

Why is 340,018,512 the sum of all factors of 161,235,120, excluding 161,235,120?

The factors of the number 161,235,120 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 463, 926, 1389, 1451, 1852, 2315, 2778, 2902, 3704, 4353, 4630, 5556, 5804, 6945, 7255, 7408, 8706, 9260, 11112, 11608, 13890, 14510, 17412, 18520, 21765, 22224, 23216, 27780, 29020, 34824, 37040, 43530, 55560, 58040, 69648, 87060, 111120, 116080, 174120, 348240, 671813, 1343626, 2015439, 2687252, 3359065, 4030878, 5374504, 6718130, 8061756, 10077195, 10749008, 13436260, 16123512, 20154390, 26872520, 32247024, 40308780, 53745040, 80617560, 161235120.

If you add them up, you will get the total of 161,235,460. Now subtract 161,235,120 to get 340,018,512


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