20180760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3911}}^1$

素因数の和:3968

約数の個数: 64

約数和(自身を含む): 61966080

約数和(自身を除く): 41785320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3911, 5160, 7822, 11733, 15644, 19555, 23466, 31288, 39110, 46932, 58665, 78220, 93864, 117330, 156440, 168173, 234660, 336346, 469320, 504519, 672692, 840865, 1009038, 1345384, 1681730, 2018076, 2522595, 3363460, 4036152, 5045190, 6726920, 10090380, 20180760]

約数ペア:

[(1, 20180760), (2, 10090380), (3, 6726920), (4, 5045190), (5, 4036152), (6, 3363460), (8, 2522595), (10, 2018076), (12, 1681730), (15, 1345384), (20, 1009038), (24, 840865), (30, 672692), (40, 504519), (43, 469320), (60, 336346), (86, 234660), (120, 168173), (129, 156440), (172, 117330), (215, 93864), (258, 78220), (344, 58665), (430, 46932), (516, 39110), (645, 31288), (860, 23466), (1032, 19555), (1290, 15644), (1720, 11733), (2580, 7822), (3911, 5160)]