18999120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 160

約数和(自身を含む): 69138432

約数和(自身を除く): 50139312

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 105, 112, 120, 129, 140, 168, 172, 210, 215, 240, 258, 263, 280, 301, 336, 344, 420, 430, 516, 526, 560, 602, 645, 688, 789, 840, 860, 903, 1032, 1052, 1204, 1290, 1315, 1505, 1578, 1680, 1720, 1806, 1841, 2064, 2104, 2408, 2580, 2630, 3010, 3156, 3440, 3612, 3682, 3945, 4208, 4515, 4816, 5160, 5260, 5523, 6020, 6312, 7224, 7364, 7890, 9030, 9205, 10320, 10520, 11046, 11309, 12040, 12624, 14448, 14728, 15780, 18060, 18410, 21040, 22092, 22618, 24080, 27615, 29456, 31560, 33927, 36120, 36820, 44184, 45236, 55230, 56545, 63120, 67854, 72240, 73640, 79163, 88368, 90472, 110460, 113090, 135708, 147280, 158326, 169635, 180944, 220920, 226180, 237489, 271416, 316652, 339270, 395815, 441840, 452360, 474978, 542832, 633304, 678540, 791630, 904720, 949956, 1187445, 1266608, 1357080, 1583260, 1899912, 2374890, 2714160, 3166520, 3799824, 4749780, 6333040, 9499560, 18999120]

約数ペア:

[(1, 18999120), (2, 9499560), (3, 6333040), (4, 4749780), (5, 3799824), (6, 3166520), (7, 2714160), (8, 2374890), (10, 1899912), (12, 1583260), (14, 1357080), (15, 1266608), (16, 1187445), (20, 949956), (21, 904720), (24, 791630), (28, 678540), (30, 633304), (35, 542832), (40, 474978), (42, 452360), (43, 441840), (48, 395815), (56, 339270), (60, 316652), (70, 271416), (80, 237489), (84, 226180), (86, 220920), (105, 180944), (112, 169635), (120, 158326), (129, 147280), (140, 135708), (168, 113090), (172, 110460), (210, 90472), (215, 88368), (240, 79163), (258, 73640), (263, 72240), (280, 67854), (301, 63120), (336, 56545), (344, 55230), (420, 45236), (430, 44184), (516, 36820), (526, 36120), (560, 33927), (602, 31560), (645, 29456), (688, 27615), (789, 24080), (840, 22618), (860, 22092), (903, 21040), (1032, 18410), (1052, 18060), (1204, 15780), (1290, 14728), (1315, 14448), (1505, 12624), (1578, 12040), (1680, 11309), (1720, 11046), (1806, 10520), (1841, 10320), (2064, 9205), (2104, 9030), (2408, 7890), (2580, 7364), (2630, 7224), (3010, 6312), (3156, 6020), (3440, 5523), (3612, 5260), (3682, 5160), (3945, 4816), (4208, 4515)]