128607840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:162

約数の個数: 288

約数和(自身を含む): 470486016

約数和(自身を除く): 341878176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 43, 45, 48, 60, 62, 67, 72, 80, 86, 90, 93, 96, 120, 124, 129, 134, 144, 155, 160, 172, 180, 186, 201, 215, 240, 248, 258, 268, 279, 288, 310, 335, 344, 360, 372, 387, 402, 430, 465, 480, 496, 516, 536, 558, 603, 620, 645, 670, 688, 720, 744, 774, 804, 860, 930, 992, 1005, 1032, 1072, 1116, 1206, 1240, 1290, 1333, 1340, 1376, 1395, 1440, 1488, 1548, 1608, 1720, 1860, 1935, 2010, 2064, 2077, 2144, 2232, 2412, 2480, 2580, 2666, 2680, 2790, 2881, 2976, 3015, 3096, 3216, 3440, 3720, 3870, 3999, 4020, 4128, 4154, 4464, 4824, 4960, 5160, 5332, 5360, 5580, 5762, 6030, 6192, 6231, 6432, 6665, 6880, 7440, 7740, 7998, 8040, 8308, 8643, 8928, 9648, 10320, 10385, 10664, 10720, 11160, 11524, 11997, 12060, 12384, 12462, 13330, 14405, 14880, 15480, 15996, 16080, 16616, 17286, 18693, 19296, 19995, 20640, 20770, 21328, 22320, 23048, 23994, 24120, 24924, 25929, 26660, 28810, 30960, 31155, 31992, 32160, 33232, 34572, 37386, 39990, 41540, 42656, 43215, 44640, 46096, 47988, 48240, 49848, 51858, 53320, 57620, 59985, 61920, 62310, 63984, 66464, 69144, 74772, 79980, 83080, 86430, 89311, 92192, 93465, 95976, 96480, 99696, 103716, 106640, 115240, 119970, 124620, 127968, 129645, 138288, 149544, 159960, 166160, 172860, 178622, 186930, 191952, 199392, 207432, 213280, 230480, 239940, 249240, 259290, 267933, 276576, 299088, 319920, 332320, 345720, 357244, 373860, 383904, 414864, 446555, 460960, 479880, 498480, 518580, 535866, 598176, 639840, 691440, 714488, 747720, 803799, 829728, 893110, 959760, 996960, 1037160, 1071732, 1339665, 1382880, 1428976, 1495440, 1607598, 1786220, 1919520, 2074320, 2143464, 2679330, 2857952, 2990880, 3215196, 3572440, 4018995, 4148640, 4286928, 5358660, 6430392, 7144880, 8037990, 8573856, 10717320, 12860784, 14289760, 16075980, 21434640, 25721568, 32151960, 42869280, 64303920, 128607840]

約数ペア:

[(1, 128607840), (2, 64303920), (3, 42869280), (4, 32151960), (5, 25721568), (6, 21434640), (8, 16075980), (9, 14289760), (10, 12860784), (12, 10717320), (15, 8573856), (16, 8037990), (18, 7144880), (20, 6430392), (24, 5358660), (30, 4286928), (31, 4148640), (32, 4018995), (36, 3572440), (40, 3215196), (43, 2990880), (45, 2857952), (48, 2679330), (60, 2143464), (62, 2074320), (67, 1919520), (72, 1786220), (80, 1607598), (86, 1495440), (90, 1428976), (93, 1382880), (96, 1339665), (120, 1071732), (124, 1037160), (129, 996960), (134, 959760), (144, 893110), (155, 829728), (160, 803799), (172, 747720), (180, 714488), (186, 691440), (201, 639840), (215, 598176), (240, 535866), (248, 518580), (258, 498480), (268, 479880), (279, 460960), (288, 446555), (310, 414864), (335, 383904), (344, 373860), (360, 357244), (372, 345720), (387, 332320), (402, 319920), (430, 299088), (465, 276576), (480, 267933), (496, 259290), (516, 249240), (536, 239940), (558, 230480), (603, 213280), (620, 207432), (645, 199392), (670, 191952), (688, 186930), (720, 178622), (744, 172860), (774, 166160), (804, 159960), (860, 149544), (930, 138288), (992, 129645), (1005, 127968), (1032, 124620), (1072, 119970), (1116, 115240), (1206, 106640), (1240, 103716), (1290, 99696), (1333, 96480), (1340, 95976), (1376, 93465), (1395, 92192), (1440, 89311), (1488, 86430), (1548, 83080), (1608, 79980), (1720, 74772), (1860, 69144), (1935, 66464), (2010, 63984), (2064, 62310), (2077, 61920), (2144, 59985), (2232, 57620), (2412, 53320), (2480, 51858), (2580, 49848), (2666, 48240), (2680, 47988), (2790, 46096), (2881, 44640), (2976, 43215), (3015, 42656), (3096, 41540), (3216, 39990), (3440, 37386), (3720, 34572), (3870, 33232), (3999, 32160), (4020, 31992), (4128, 31155), (4154, 30960), (4464, 28810), (4824, 26660), (4960, 25929), (5160, 24924), (5332, 24120), (5360, 23994), (5580, 23048), (5762, 22320), (6030, 21328), (6192, 20770), (6231, 20640), (6432, 19995), (6665, 19296), (6880, 18693), (7440, 17286), (7740, 16616), (7998, 16080), (8040, 15996), (8308, 15480), (8643, 14880), (8928, 14405), (9648, 13330), (10320, 12462), (10385, 12384), (10664, 12060), (10720, 11997), (11160, 11524)]