18554120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1151}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 27894520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1151, 1240, 1612, 2015, 2302, 3224, 4030, 4604, 5755, 8060, 9208, 11510, 14963, 16120, 23020, 29926, 35681, 46040, 59852, 71362, 74815, 119704, 142724, 149630, 178405, 285448, 299260, 356810, 463853, 598520, 713620, 927706, 1427240, 1855412, 2319265, 3710824, 4638530, 9277060, 18554120]

約数ペア:

[(1, 18554120), (2, 9277060), (4, 4638530), (5, 3710824), (8, 2319265), (10, 1855412), (13, 1427240), (20, 927706), (26, 713620), (31, 598520), (40, 463853), (52, 356810), (62, 299260), (65, 285448), (104, 178405), (124, 149630), (130, 142724), (155, 119704), (248, 74815), (260, 71362), (310, 59852), (403, 46040), (520, 35681), (620, 29926), (806, 23020), (1151, 16120), (1240, 14963), (1612, 11510), (2015, 9208), (2302, 8060), (3224, 5755), (4030, 4604)]