20418120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1319}}^1$

素因数の和:1379

約数の個数: 96

約数和(自身を含む): 67953600

約数和(自身を除く): 47535480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 72, 86, 90, 120, 129, 172, 180, 215, 258, 344, 360, 387, 430, 516, 645, 774, 860, 1032, 1290, 1319, 1548, 1720, 1935, 2580, 2638, 3096, 3870, 3957, 5160, 5276, 6595, 7740, 7914, 10552, 11871, 13190, 15480, 15828, 19785, 23742, 26380, 31656, 39570, 47484, 52760, 56717, 59355, 79140, 94968, 113434, 118710, 158280, 170151, 226868, 237420, 283585, 340302, 453736, 474840, 510453, 567170, 680604, 850755, 1020906, 1134340, 1361208, 1701510, 2041812, 2268680, 2552265, 3403020, 4083624, 5104530, 6806040, 10209060, 20418120]

約数ペア:

[(1, 20418120), (2, 10209060), (3, 6806040), (4, 5104530), (5, 4083624), (6, 3403020), (8, 2552265), (9, 2268680), (10, 2041812), (12, 1701510), (15, 1361208), (18, 1134340), (20, 1020906), (24, 850755), (30, 680604), (36, 567170), (40, 510453), (43, 474840), (45, 453736), (60, 340302), (72, 283585), (86, 237420), (90, 226868), (120, 170151), (129, 158280), (172, 118710), (180, 113434), (215, 94968), (258, 79140), (344, 59355), (360, 56717), (387, 52760), (430, 47484), (516, 39570), (645, 31656), (774, 26380), (860, 23742), (1032, 19785), (1290, 15828), (1319, 15480), (1548, 13190), (1720, 11871), (1935, 10552), (2580, 7914), (2638, 7740), (3096, 6595), (3870, 5276), (3957, 5160)]