221666720

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:199

約数の個数: 192

約数和(自身を含む): 610727040

約数和(自身を除く): 389060320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 43, 44, 55, 58, 80, 86, 88, 101, 110, 116, 145, 160, 172, 176, 202, 215, 220, 232, 290, 319, 344, 352, 404, 430, 440, 464, 473, 505, 580, 638, 688, 808, 860, 880, 928, 946, 1010, 1111, 1160, 1247, 1276, 1376, 1595, 1616, 1720, 1760, 1892, 2020, 2222, 2320, 2365, 2494, 2552, 2929, 3190, 3232, 3440, 3784, 4040, 4343, 4444, 4640, 4730, 4988, 5104, 5555, 5858, 6235, 6380, 6880, 7568, 8080, 8686, 8888, 9460, 9976, 10208, 11110, 11716, 12470, 12760, 13717, 14645, 15136, 16160, 17372, 17776, 18920, 19952, 21715, 22220, 23432, 24940, 25520, 27434, 29290, 32219, 34744, 35552, 37840, 39904, 43430, 44440, 46864, 47773, 49880, 51040, 54868, 58580, 64438, 68585, 69488, 75680, 86860, 88880, 93728, 95546, 99760, 109736, 117160, 125947, 128876, 137170, 138976, 161095, 173720, 177760, 191092, 199520, 219472, 234320, 238865, 251894, 257752, 274340, 322190, 347440, 382184, 438944, 468640, 477730, 503788, 515504, 548680, 629735, 644380, 694880, 764368, 955460, 1007576, 1031008, 1097360, 1259470, 1288760, 1385417, 1528736, 1910920, 2015152, 2194720, 2518940, 2577520, 2770834, 3821840, 4030304, 5037880, 5155040, 5541668, 6927085, 7643680, 10075760, 11083336, 13854170, 20151520, 22166672, 27708340, 44333344, 55416680, 110833360, 221666720]

約数ペア:

[(1, 221666720), (2, 110833360), (4, 55416680), (5, 44333344), (8, 27708340), (10, 22166672), (11, 20151520), (16, 13854170), (20, 11083336), (22, 10075760), (29, 7643680), (32, 6927085), (40, 5541668), (43, 5155040), (44, 5037880), (55, 4030304), (58, 3821840), (80, 2770834), (86, 2577520), (88, 2518940), (101, 2194720), (110, 2015152), (116, 1910920), (145, 1528736), (160, 1385417), (172, 1288760), (176, 1259470), (202, 1097360), (215, 1031008), (220, 1007576), (232, 955460), (290, 764368), (319, 694880), (344, 644380), (352, 629735), (404, 548680), (430, 515504), (440, 503788), (464, 477730), (473, 468640), (505, 438944), (580, 382184), (638, 347440), (688, 322190), (808, 274340), (860, 257752), (880, 251894), (928, 238865), (946, 234320), (1010, 219472), (1111, 199520), (1160, 191092), (1247, 177760), (1276, 173720), (1376, 161095), (1595, 138976), (1616, 137170), (1720, 128876), (1760, 125947), (1892, 117160), (2020, 109736), (2222, 99760), (2320, 95546), (2365, 93728), (2494, 88880), (2552, 86860), (2929, 75680), (3190, 69488), (3232, 68585), (3440, 64438), (3784, 58580), (4040, 54868), (4343, 51040), (4444, 49880), (4640, 47773), (4730, 46864), (4988, 44440), (5104, 43430), (5555, 39904), (5858, 37840), (6235, 35552), (6380, 34744), (6880, 32219), (7568, 29290), (8080, 27434), (8686, 25520), (8888, 24940), (9460, 23432), (9976, 22220), (10208, 21715), (11110, 19952), (11716, 18920), (12470, 17776), (12760, 17372), (13717, 16160), (14645, 15136)]