18205121115

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1259}}^1\times {\mathrm{4657}}^1$

素因数の和:5953

約数の個数: 64

約数和(自身を含む): 33805900800

約数和(自身を除く): 15600779685

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 1259, 3105, 3777, 4657, 6295, 11331, 13971, 18885, 23285, 28957, 33993, 41913, 56655, 69855, 86871, 107111, 125739, 144785, 169965, 209565, 260613, 321333, 434355, 535555, 628695, 781839, 963999, 1303065, 1606665, 2891997, 3909195, 4819995, 5863163, 14459985, 17589489, 29315815, 52768467, 87947445, 134852749, 158305401, 263842335, 404558247, 674263745, 791527005, 1213674741, 2022791235, 3641024223, 6068373705, 18205121115]

約数ペア:

[(1, 18205121115), (3, 6068373705), (5, 3641024223), (9, 2022791235), (15, 1213674741), (23, 791527005), (27, 674263745), (45, 404558247), (69, 263842335), (115, 158305401), (135, 134852749), (207, 87947445), (345, 52768467), (621, 29315815), (1035, 17589489), (1259, 14459985), (3105, 5863163), (3777, 4819995), (4657, 3909195), (6295, 2891997), (11331, 1606665), (13971, 1303065), (18885, 963999), (23285, 781839), (28957, 628695), (33993, 535555), (41913, 434355), (56655, 321333), (69855, 260613), (86871, 209565), (107111, 169965), (125739, 144785)]