20847288

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 67392000

約数和(自身を除く): 46544712

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 29, 33, 42, 44, 56, 58, 66, 77, 84, 87, 88, 116, 132, 154, 168, 174, 203, 231, 232, 264, 308, 319, 348, 389, 406, 462, 609, 616, 638, 696, 778, 812, 924, 957, 1167, 1218, 1276, 1556, 1624, 1848, 1914, 2233, 2334, 2436, 2552, 2723, 3112, 3828, 4279, 4466, 4668, 4872, 5446, 6699, 7656, 8169, 8558, 8932, 9336, 10892, 11281, 12837, 13398, 16338, 17116, 17864, 21784, 22562, 25674, 26796, 29953, 32676, 33843, 34232, 45124, 51348, 53592, 59906, 65352, 67686, 78967, 89859, 90248, 102696, 119812, 124091, 135372, 157934, 179718, 236901, 239624, 248182, 270744, 315868, 359436, 372273, 473802, 496364, 631736, 718872, 744546, 868637, 947604, 992728, 1489092, 1737274, 1895208, 2605911, 2978184, 3474548, 5211822, 6949096, 10423644, 20847288]

約数ペア:

[(1, 20847288), (2, 10423644), (3, 6949096), (4, 5211822), (6, 3474548), (7, 2978184), (8, 2605911), (11, 1895208), (12, 1737274), (14, 1489092), (21, 992728), (22, 947604), (24, 868637), (28, 744546), (29, 718872), (33, 631736), (42, 496364), (44, 473802), (56, 372273), (58, 359436), (66, 315868), (77, 270744), (84, 248182), (87, 239624), (88, 236901), (116, 179718), (132, 157934), (154, 135372), (168, 124091), (174, 119812), (203, 102696), (231, 90248), (232, 89859), (264, 78967), (308, 67686), (319, 65352), (348, 59906), (389, 53592), (406, 51348), (462, 45124), (609, 34232), (616, 33843), (638, 32676), (696, 29953), (778, 26796), (812, 25674), (924, 22562), (957, 21784), (1167, 17864), (1218, 17116), (1276, 16338), (1556, 13398), (1624, 12837), (1848, 11281), (1914, 10892), (2233, 9336), (2334, 8932), (2436, 8558), (2552, 8169), (2723, 7656), (3112, 6699), (3828, 5446), (4279, 4872), (4466, 4668)]