90751880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 212544000

約数和(自身を除く): 121792120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 449, 620, 652, 815, 898, 1240, 1304, 1630, 1796, 2245, 3260, 3592, 4490, 5053, 6520, 8980, 10106, 13919, 17960, 20212, 25265, 27838, 40424, 50530, 55676, 69595, 73187, 101060, 111352, 139190, 146374, 202120, 278380, 292748, 365935, 556760, 585496, 731870, 1463740, 2268797, 2927480, 4537594, 9075188, 11343985, 18150376, 22687970, 45375940, 90751880]

約数ペア:

[(1, 90751880), (2, 45375940), (4, 22687970), (5, 18150376), (8, 11343985), (10, 9075188), (20, 4537594), (31, 2927480), (40, 2268797), (62, 1463740), (124, 731870), (155, 585496), (163, 556760), (248, 365935), (310, 292748), (326, 278380), (449, 202120), (620, 146374), (652, 139190), (815, 111352), (898, 101060), (1240, 73187), (1304, 69595), (1630, 55676), (1796, 50530), (2245, 40424), (3260, 27838), (3592, 25265), (4490, 20212), (5053, 17960), (6520, 13919), (8980, 10106)]