420174920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{86813}}^1$

素因数の和:86846

約数の個数: 48

約数和(自身を含む): 1039163580

約数和(自身を除く): 618988660

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 86813, 173626, 347252, 434065, 694504, 868130, 954943, 1736260, 1909886, 3472520, 3819772, 4774715, 7639544, 9549430, 10504373, 19098860, 21008746, 38197720, 42017492, 52521865, 84034984, 105043730, 210087460, 420174920]

約数ペア:

[(1, 420174920), (2, 210087460), (4, 105043730), (5, 84034984), (8, 52521865), (10, 42017492), (11, 38197720), (20, 21008746), (22, 19098860), (40, 10504373), (44, 9549430), (55, 7639544), (88, 4774715), (110, 3819772), (121, 3472520), (220, 1909886), (242, 1736260), (440, 954943), (484, 868130), (605, 694504), (968, 434065), (1210, 347252), (2420, 173626), (4840, 86813)]