20180212180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{634199}}^1$

素因数の和:634288

約数の個数: 48

約数和(自身を含む): 44536060800

約数和(自身を除く): 24355848620

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 740, 860, 1591, 3182, 6364, 7955, 15910, 31820, 634199, 1268398, 2536796, 3170995, 6341990, 12683980, 23465363, 27270557, 46930726, 54541114, 93861452, 109082228, 117326815, 136352785, 234653630, 272705570, 469307260, 545411140, 1009010609, 2018021218, 4036042436, 5045053045, 10090106090, 20180212180]

約数ペア:

[(1, 20180212180), (2, 10090106090), (4, 5045053045), (5, 4036042436), (10, 2018021218), (20, 1009010609), (37, 545411140), (43, 469307260), (74, 272705570), (86, 234653630), (148, 136352785), (172, 117326815), (185, 109082228), (215, 93861452), (370, 54541114), (430, 46930726), (740, 27270557), (860, 23465363), (1591, 12683980), (3182, 6341990), (6364, 3170995), (7955, 2536796), (15910, 1268398), (31820, 634199)]