257617440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:280

約数の個数: 288

約数和(自身を含む): 943488000

約数和(自身を除く): 685870560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 31, 32, 36, 40, 45, 48, 58, 60, 62, 72, 80, 87, 90, 93, 96, 116, 120, 124, 144, 145, 155, 160, 174, 180, 186, 199, 232, 240, 248, 261, 279, 288, 290, 310, 348, 360, 372, 398, 435, 464, 465, 480, 496, 522, 558, 580, 597, 620, 696, 720, 744, 796, 870, 899, 928, 930, 992, 995, 1044, 1116, 1160, 1194, 1240, 1305, 1392, 1395, 1440, 1488, 1592, 1740, 1791, 1798, 1860, 1990, 2088, 2232, 2320, 2388, 2480, 2610, 2697, 2784, 2790, 2976, 2985, 3184, 3480, 3582, 3596, 3720, 3980, 4176, 4464, 4495, 4640, 4776, 4960, 5220, 5394, 5580, 5771, 5970, 6169, 6368, 6960, 7164, 7192, 7440, 7960, 8091, 8352, 8928, 8955, 8990, 9552, 10440, 10788, 11160, 11542, 11940, 12338, 13485, 13920, 14328, 14384, 14880, 15920, 16182, 17313, 17910, 17980, 18507, 19104, 20880, 21576, 22320, 23084, 23880, 24676, 26970, 28656, 28768, 28855, 30845, 31840, 32364, 34626, 35820, 35960, 37014, 40455, 41760, 43152, 44640, 46168, 47760, 49352, 51939, 53940, 55521, 57312, 57710, 61690, 64728, 69252, 71640, 71920, 74028, 80910, 86304, 86565, 92336, 92535, 95520, 98704, 103878, 107880, 111042, 115420, 123380, 129456, 138504, 143280, 143840, 148056, 161820, 173130, 178901, 184672, 185070, 197408, 207756, 215760, 222084, 230840, 246760, 258912, 259695, 277008, 277605, 286560, 296112, 323640, 346260, 357802, 370140, 415512, 431520, 444168, 461680, 493520, 519390, 536703, 554016, 555210, 592224, 647280, 692520, 715604, 740280, 831024, 888336, 894505, 923360, 987040, 1038780, 1073406, 1110420, 1294560, 1385040, 1431208, 1480560, 1610109, 1662048, 1776672, 1789010, 2077560, 2146812, 2220840, 2683515, 2770080, 2862416, 2961120, 3220218, 3578020, 4155120, 4293624, 4441680, 5367030, 5724832, 6440436, 7156040, 8050545, 8310240, 8587248, 8883360, 10734060, 12880872, 14312080, 16101090, 17174496, 21468120, 25761744, 28624160, 32202180, 42936240, 51523488, 64404360, 85872480, 128808720, 257617440]

約数ペア:

[(1, 257617440), (2, 128808720), (3, 85872480), (4, 64404360), (5, 51523488), (6, 42936240), (8, 32202180), (9, 28624160), (10, 25761744), (12, 21468120), (15, 17174496), (16, 16101090), (18, 14312080), (20, 12880872), (24, 10734060), (29, 8883360), (30, 8587248), (31, 8310240), (32, 8050545), (36, 7156040), (40, 6440436), (45, 5724832), (48, 5367030), (58, 4441680), (60, 4293624), (62, 4155120), (72, 3578020), (80, 3220218), (87, 2961120), (90, 2862416), (93, 2770080), (96, 2683515), (116, 2220840), (120, 2146812), (124, 2077560), (144, 1789010), (145, 1776672), (155, 1662048), (160, 1610109), (174, 1480560), (180, 1431208), (186, 1385040), (199, 1294560), (232, 1110420), (240, 1073406), (248, 1038780), (261, 987040), (279, 923360), (288, 894505), (290, 888336), (310, 831024), (348, 740280), (360, 715604), (372, 692520), (398, 647280), (435, 592224), (464, 555210), (465, 554016), (480, 536703), (496, 519390), (522, 493520), (558, 461680), (580, 444168), (597, 431520), (620, 415512), (696, 370140), (720, 357802), (744, 346260), (796, 323640), (870, 296112), (899, 286560), (928, 277605), (930, 277008), (992, 259695), (995, 258912), (1044, 246760), (1116, 230840), (1160, 222084), (1194, 215760), (1240, 207756), (1305, 197408), (1392, 185070), (1395, 184672), (1440, 178901), (1488, 173130), (1592, 161820), (1740, 148056), (1791, 143840), (1798, 143280), (1860, 138504), (1990, 129456), (2088, 123380), (2232, 115420), (2320, 111042), (2388, 107880), (2480, 103878), (2610, 98704), (2697, 95520), (2784, 92535), (2790, 92336), (2976, 86565), (2985, 86304), (3184, 80910), (3480, 74028), (3582, 71920), (3596, 71640), (3720, 69252), (3980, 64728), (4176, 61690), (4464, 57710), (4495, 57312), (4640, 55521), (4776, 53940), (4960, 51939), (5220, 49352), (5394, 47760), (5580, 46168), (5771, 44640), (5970, 43152), (6169, 41760), (6368, 40455), (6960, 37014), (7164, 35960), (7192, 35820), (7440, 34626), (7960, 32364), (8091, 31840), (8352, 30845), (8928, 28855), (8955, 28768), (8990, 28656), (9552, 26970), (10440, 24676), (10788, 23880), (11160, 23084), (11542, 22320), (11940, 21576), (12338, 20880), (13485, 19104), (13920, 18507), (14328, 17980), (14384, 17910), (14880, 17313), (15920, 16182)]