64346920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:263

約数の個数: 128

約数和(自身を含む): 171072000

約数和(自身を除く): 106725080

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 43, 44, 55, 76, 86, 88, 95, 110, 152, 172, 179, 190, 209, 215, 220, 344, 358, 380, 418, 430, 440, 473, 716, 760, 817, 836, 860, 895, 946, 1045, 1432, 1634, 1672, 1720, 1790, 1892, 1969, 2090, 2365, 3268, 3401, 3580, 3784, 3938, 4085, 4180, 4730, 6536, 6802, 7160, 7697, 7876, 8170, 8360, 8987, 9460, 9845, 13604, 15394, 15752, 16340, 17005, 17974, 18920, 19690, 27208, 30788, 32680, 34010, 35948, 37411, 38485, 39380, 44935, 61576, 68020, 71896, 74822, 76970, 78760, 84667, 89870, 136040, 146243, 149644, 153940, 169334, 179740, 187055, 292486, 299288, 307880, 338668, 359480, 374110, 423335, 584972, 677336, 731215, 748220, 846670, 1169944, 1462430, 1496440, 1608673, 1693340, 2924860, 3217346, 3386680, 5849720, 6434692, 8043365, 12869384, 16086730, 32173460, 64346920]

約数ペア:

[(1, 64346920), (2, 32173460), (4, 16086730), (5, 12869384), (8, 8043365), (10, 6434692), (11, 5849720), (19, 3386680), (20, 3217346), (22, 2924860), (38, 1693340), (40, 1608673), (43, 1496440), (44, 1462430), (55, 1169944), (76, 846670), (86, 748220), (88, 731215), (95, 677336), (110, 584972), (152, 423335), (172, 374110), (179, 359480), (190, 338668), (209, 307880), (215, 299288), (220, 292486), (344, 187055), (358, 179740), (380, 169334), (418, 153940), (430, 149644), (440, 146243), (473, 136040), (716, 89870), (760, 84667), (817, 78760), (836, 76970), (860, 74822), (895, 71896), (946, 68020), (1045, 61576), (1432, 44935), (1634, 39380), (1672, 38485), (1720, 37411), (1790, 35948), (1892, 34010), (1969, 32680), (2090, 30788), (2365, 27208), (3268, 19690), (3401, 18920), (3580, 17974), (3784, 17005), (3938, 16340), (4085, 15752), (4180, 15394), (4730, 13604), (6536, 9845), (6802, 9460), (7160, 8987), (7697, 8360), (7876, 8170)]