388307520

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 280

約数和(自身を含む): 1407371328

約数和(自身を除く): 1019063808

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 71, 72, 80, 81, 90, 96, 108, 120, 135, 142, 144, 160, 162, 180, 192, 211, 213, 216, 240, 270, 284, 288, 320, 324, 355, 360, 405, 422, 426, 432, 480, 540, 568, 576, 633, 639, 648, 710, 720, 810, 844, 852, 864, 960, 1055, 1065, 1080, 1136, 1266, 1278, 1296, 1420, 1440, 1620, 1688, 1704, 1728, 1899, 1917, 2110, 2130, 2160, 2272, 2532, 2556, 2592, 2840, 2880, 3165, 3195, 3240, 3376, 3408, 3798, 3834, 4220, 4260, 4320, 4544, 5064, 5112, 5184, 5680, 5697, 5751, 6330, 6390, 6480, 6752, 6816, 7596, 7668, 8440, 8520, 8640, 9495, 9585, 10128, 10224, 11360, 11394, 11502, 12660, 12780, 12960, 13504, 13632, 14981, 15192, 15336, 16880, 17040, 17091, 18990, 19170, 20256, 20448, 22720, 22788, 23004, 25320, 25560, 25920, 28485, 28755, 29962, 30384, 30672, 33760, 34080, 34182, 37980, 38340, 40512, 40896, 44943, 45576, 46008, 50640, 51120, 56970, 57510, 59924, 60768, 61344, 67520, 68160, 68364, 74905, 75960, 76680, 85455, 89886, 91152, 92016, 101280, 102240, 113940, 115020, 119848, 121536, 122688, 134829, 136728, 149810, 151920, 153360, 170910, 179772, 182304, 184032, 202560, 204480, 224715, 227880, 230040, 239696, 269658, 273456, 299620, 303840, 306720, 341820, 359544, 364608, 368064, 404487, 449430, 455760, 460080, 479392, 539316, 546912, 599240, 607680, 613440, 674145, 683640, 719088, 808974, 898860, 911520, 920160, 958784, 1078632, 1093824, 1198480, 1213461, 1348290, 1367280, 1438176, 1617948, 1797720, 1823040, 1840320, 2022435, 2157264, 2396960, 2426922, 2696580, 2734560, 2876352, 3235896, 3595440, 4044870, 4314528, 4793920, 4853844, 5393160, 5469120, 6067305, 6471792, 7190880, 8089740, 8629056, 9707688, 10786320, 12134610, 12943584, 14381760, 16179480, 19415376, 21572640, 24269220, 25887168, 32358960, 38830752, 43145280, 48538440, 64717920, 77661504, 97076880, 129435840, 194153760, 388307520]

約数ペア:

[(1, 388307520), (2, 194153760), (3, 129435840), (4, 97076880), (5, 77661504), (6, 64717920), (8, 48538440), (9, 43145280), (10, 38830752), (12, 32358960), (15, 25887168), (16, 24269220), (18, 21572640), (20, 19415376), (24, 16179480), (27, 14381760), (30, 12943584), (32, 12134610), (36, 10786320), (40, 9707688), (45, 8629056), (48, 8089740), (54, 7190880), (60, 6471792), (64, 6067305), (71, 5469120), (72, 5393160), (80, 4853844), (81, 4793920), (90, 4314528), (96, 4044870), (108, 3595440), (120, 3235896), (135, 2876352), (142, 2734560), (144, 2696580), (160, 2426922), (162, 2396960), (180, 2157264), (192, 2022435), (211, 1840320), (213, 1823040), (216, 1797720), (240, 1617948), (270, 1438176), (284, 1367280), (288, 1348290), (320, 1213461), (324, 1198480), (355, 1093824), (360, 1078632), (405, 958784), (422, 920160), (426, 911520), (432, 898860), (480, 808974), (540, 719088), (568, 683640), (576, 674145), (633, 613440), (639, 607680), (648, 599240), (710, 546912), (720, 539316), (810, 479392), (844, 460080), (852, 455760), (864, 449430), (960, 404487), (1055, 368064), (1065, 364608), (1080, 359544), (1136, 341820), (1266, 306720), (1278, 303840), (1296, 299620), (1420, 273456), (1440, 269658), (1620, 239696), (1688, 230040), (1704, 227880), (1728, 224715), (1899, 204480), (1917, 202560), (2110, 184032), (2130, 182304), (2160, 179772), (2272, 170910), (2532, 153360), (2556, 151920), (2592, 149810), (2840, 136728), (2880, 134829), (3165, 122688), (3195, 121536), (3240, 119848), (3376, 115020), (3408, 113940), (3798, 102240), (3834, 101280), (4220, 92016), (4260, 91152), (4320, 89886), (4544, 85455), (5064, 76680), (5112, 75960), (5184, 74905), (5680, 68364), (5697, 68160), (5751, 67520), (6330, 61344), (6390, 60768), (6480, 59924), (6752, 57510), (6816, 56970), (7596, 51120), (7668, 50640), (8440, 46008), (8520, 45576), (8640, 44943), (9495, 40896), (9585, 40512), (10128, 38340), (10224, 37980), (11360, 34182), (11394, 34080), (11502, 33760), (12660, 30672), (12780, 30384), (12960, 29962), (13504, 28755), (13632, 28485), (14981, 25920), (15192, 25560), (15336, 25320), (16880, 23004), (17040, 22788), (17091, 22720), (18990, 20448), (19170, 20256)]