18890760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{523}}^1$

素因数の和:587

約数の個数: 128

約数和(自身を含む): 66401280

約数和(自身を除く): 47510520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 56, 60, 70, 84, 86, 105, 120, 129, 140, 168, 172, 210, 215, 258, 280, 301, 344, 420, 430, 516, 523, 602, 645, 840, 860, 903, 1032, 1046, 1204, 1290, 1505, 1569, 1720, 1806, 2092, 2408, 2580, 2615, 3010, 3138, 3612, 3661, 4184, 4515, 5160, 5230, 6020, 6276, 7224, 7322, 7845, 9030, 10460, 10983, 12040, 12552, 14644, 15690, 18060, 18305, 20920, 21966, 22489, 29288, 31380, 36120, 36610, 43932, 44978, 54915, 62760, 67467, 73220, 87864, 89956, 109830, 112445, 134934, 146440, 157423, 179912, 219660, 224890, 269868, 314846, 337335, 439320, 449780, 472269, 539736, 629692, 674670, 787115, 899560, 944538, 1259384, 1349340, 1574230, 1889076, 2361345, 2698680, 3148460, 3778152, 4722690, 6296920, 9445380, 18890760]

約数ペア:

[(1, 18890760), (2, 9445380), (3, 6296920), (4, 4722690), (5, 3778152), (6, 3148460), (7, 2698680), (8, 2361345), (10, 1889076), (12, 1574230), (14, 1349340), (15, 1259384), (20, 944538), (21, 899560), (24, 787115), (28, 674670), (30, 629692), (35, 539736), (40, 472269), (42, 449780), (43, 439320), (56, 337335), (60, 314846), (70, 269868), (84, 224890), (86, 219660), (105, 179912), (120, 157423), (129, 146440), (140, 134934), (168, 112445), (172, 109830), (210, 89956), (215, 87864), (258, 73220), (280, 67467), (301, 62760), (344, 54915), (420, 44978), (430, 43932), (516, 36610), (523, 36120), (602, 31380), (645, 29288), (840, 22489), (860, 21966), (903, 20920), (1032, 18305), (1046, 18060), (1204, 15690), (1290, 14644), (1505, 12552), (1569, 12040), (1720, 10983), (1806, 10460), (2092, 9030), (2408, 7845), (2580, 7322), (2615, 7224), (3010, 6276), (3138, 6020), (3612, 5230), (3661, 5160), (4184, 4515)]