257387680

素因数分解:

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

素因数の和:267

約数の個数: 192

約数和(自身を含む): 718502400

約数和(自身を除く): 461114720

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 43, 44, 55, 76, 80, 86, 88, 95, 110, 152, 160, 172, 176, 179, 190, 209, 215, 220, 304, 344, 352, 358, 380, 418, 430, 440, 473, 608, 688, 716, 760, 817, 836, 860, 880, 895, 946, 1045, 1376, 1432, 1520, 1634, 1672, 1720, 1760, 1790, 1892, 1969, 2090, 2365, 2864, 3040, 3268, 3344, 3401, 3440, 3580, 3784, 3938, 4085, 4180, 4730, 5728, 6536, 6688, 6802, 6880, 7160, 7568, 7697, 7876, 8170, 8360, 8987, 9460, 9845, 13072, 13604, 14320, 15136, 15394, 15752, 16340, 16720, 17005, 17974, 18920, 19690, 26144, 27208, 28640, 30788, 31504, 32680, 33440, 34010, 35948, 37411, 37840, 38485, 39380, 44935, 54416, 61576, 63008, 65360, 68020, 71896, 74822, 75680, 76970, 78760, 84667, 89870, 108832, 123152, 130720, 136040, 143792, 146243, 149644, 153940, 157520, 169334, 179740, 187055, 246304, 272080, 287584, 292486, 299288, 307880, 315040, 338668, 359480, 374110, 423335, 544160, 584972, 598576, 615760, 677336, 718960, 731215, 748220, 846670, 1169944, 1197152, 1231520, 1354672, 1437920, 1462430, 1496440, 1608673, 1693340, 2339888, 2709344, 2924860, 2992880, 3217346, 3386680, 4679776, 5849720, 5985760, 6434692, 6773360, 8043365, 11699440, 12869384, 13546720, 16086730, 23398880, 25738768, 32173460, 51477536, 64346920, 128693840, 257387680]

約数ペア:

[(1, 257387680), (2, 128693840), (4, 64346920), (5, 51477536), (8, 32173460), (10, 25738768), (11, 23398880), (16, 16086730), (19, 13546720), (20, 12869384), (22, 11699440), (32, 8043365), (38, 6773360), (40, 6434692), (43, 5985760), (44, 5849720), (55, 4679776), (76, 3386680), (80, 3217346), (86, 2992880), (88, 2924860), (95, 2709344), (110, 2339888), (152, 1693340), (160, 1608673), (172, 1496440), (176, 1462430), (179, 1437920), (190, 1354672), (209, 1231520), (215, 1197152), (220, 1169944), (304, 846670), (344, 748220), (352, 731215), (358, 718960), (380, 677336), (418, 615760), (430, 598576), (440, 584972), (473, 544160), (608, 423335), (688, 374110), (716, 359480), (760, 338668), (817, 315040), (836, 307880), (860, 299288), (880, 292486), (895, 287584), (946, 272080), (1045, 246304), (1376, 187055), (1432, 179740), (1520, 169334), (1634, 157520), (1672, 153940), (1720, 149644), (1760, 146243), (1790, 143792), (1892, 136040), (1969, 130720), (2090, 123152), (2365, 108832), (2864, 89870), (3040, 84667), (3268, 78760), (3344, 76970), (3401, 75680), (3440, 74822), (3580, 71896), (3784, 68020), (3938, 65360), (4085, 63008), (4180, 61576), (4730, 54416), (5728, 44935), (6536, 39380), (6688, 38485), (6802, 37840), (6880, 37411), (7160, 35948), (7568, 34010), (7697, 33440), (7876, 32680), (8170, 31504), (8360, 30788), (8987, 28640), (9460, 27208), (9845, 26144), (13072, 19690), (13604, 18920), (14320, 17974), (15136, 17005), (15394, 16720), (15752, 16340)]