128808720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 240

約数和(自身を含む): 464256000

約数和(自身を除く): 335447280

約数列:

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

約数ペア:

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