20131068740

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2050007}}^1$

素因数の和:2050507

約数の個数: 24

約数和(自身を含む): 42361365312

約数和(自身を除く): 22230296572

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 2050007, 4100014, 8200028, 10250035, 20500070, 41000140, 1006553437, 2013106874, 4026213748, 5032767185, 10065534370, 20131068740]

約数ペア:

[(1, 20131068740), (2, 10065534370), (4, 5032767185), (5, 4026213748), (10, 2013106874), (20, 1006553437), (491, 41000140), (982, 20500070), (1964, 10250035), (2455, 8200028), (4910, 4100014), (9820, 2050007)]