18405720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:130

約数の個数: 192

約数和(自身を含む): 64864800

約数和(自身を除く): 46459080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 41, 43, 45, 58, 60, 72, 82, 86, 87, 90, 116, 120, 123, 129, 145, 164, 172, 174, 180, 205, 215, 232, 246, 258, 261, 290, 328, 344, 348, 360, 369, 387, 410, 430, 435, 492, 516, 522, 580, 615, 645, 696, 738, 774, 820, 860, 870, 984, 1032, 1044, 1160, 1189, 1230, 1247, 1290, 1305, 1476, 1548, 1640, 1720, 1740, 1763, 1845, 1935, 2088, 2378, 2460, 2494, 2580, 2610, 2952, 3096, 3480, 3526, 3567, 3690, 3741, 3870, 4756, 4920, 4988, 5160, 5220, 5289, 5945, 6235, 7052, 7134, 7380, 7482, 7740, 8815, 9512, 9976, 10440, 10578, 10701, 11223, 11890, 12470, 14104, 14268, 14760, 14964, 15480, 15867, 17630, 17835, 18705, 21156, 21402, 22446, 23780, 24940, 26445, 28536, 29928, 31734, 35260, 35670, 37410, 42312, 42804, 44892, 47560, 49880, 51127, 52890, 53505, 56115, 63468, 70520, 71340, 74820, 79335, 85608, 89784, 102254, 105780, 107010, 112230, 126936, 142680, 149640, 153381, 158670, 204508, 211560, 214020, 224460, 255635, 306762, 317340, 409016, 428040, 448920, 460143, 511270, 613524, 634680, 766905, 920286, 1022540, 1227048, 1533810, 1840572, 2045080, 2300715, 3067620, 3681144, 4601430, 6135240, 9202860, 18405720]

約数ペア:

[(1, 18405720), (2, 9202860), (3, 6135240), (4, 4601430), (5, 3681144), (6, 3067620), (8, 2300715), (9, 2045080), (10, 1840572), (12, 1533810), (15, 1227048), (18, 1022540), (20, 920286), (24, 766905), (29, 634680), (30, 613524), (36, 511270), (40, 460143), (41, 448920), (43, 428040), (45, 409016), (58, 317340), (60, 306762), (72, 255635), (82, 224460), (86, 214020), (87, 211560), (90, 204508), (116, 158670), (120, 153381), (123, 149640), (129, 142680), (145, 126936), (164, 112230), (172, 107010), (174, 105780), (180, 102254), (205, 89784), (215, 85608), (232, 79335), (246, 74820), (258, 71340), (261, 70520), (290, 63468), (328, 56115), (344, 53505), (348, 52890), (360, 51127), (369, 49880), (387, 47560), (410, 44892), (430, 42804), (435, 42312), (492, 37410), (516, 35670), (522, 35260), (580, 31734), (615, 29928), (645, 28536), (696, 26445), (738, 24940), (774, 23780), (820, 22446), (860, 21402), (870, 21156), (984, 18705), (1032, 17835), (1044, 17630), (1160, 15867), (1189, 15480), (1230, 14964), (1247, 14760), (1290, 14268), (1305, 14104), (1476, 12470), (1548, 11890), (1640, 11223), (1720, 10701), (1740, 10578), (1763, 10440), (1845, 9976), (1935, 9512), (2088, 8815), (2378, 7740), (2460, 7482), (2494, 7380), (2580, 7134), (2610, 7052), (2952, 6235), (3096, 5945), (3480, 5289), (3526, 5220), (3567, 5160), (3690, 4988), (3741, 4920), (3870, 4756)]