138919680

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:447

約数の個数: 216

約数和(自身を含む): 497427840

約数和(自身を除く): 358508160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 128, 144, 155, 160, 180, 186, 192, 240, 248, 256, 279, 288, 310, 320, 360, 372, 384, 389, 465, 480, 496, 558, 576, 620, 640, 720, 744, 768, 778, 930, 960, 992, 1116, 1152, 1167, 1240, 1280, 1395, 1440, 1488, 1556, 1860, 1920, 1945, 1984, 2232, 2304, 2334, 2480, 2790, 2880, 2976, 3112, 3501, 3720, 3840, 3890, 3968, 4464, 4668, 4960, 5580, 5760, 5835, 5952, 6224, 7002, 7440, 7780, 7936, 8928, 9336, 9920, 11160, 11520, 11670, 11904, 12059, 12448, 14004, 14880, 15560, 17505, 17856, 18672, 19840, 22320, 23340, 23808, 24118, 24896, 28008, 29760, 31120, 35010, 35712, 36177, 37344, 39680, 44640, 46680, 48236, 49792, 56016, 59520, 60295, 62240, 70020, 71424, 72354, 74688, 89280, 93360, 96472, 99584, 108531, 112032, 119040, 120590, 124480, 140040, 144708, 149376, 178560, 180885, 186720, 192944, 217062, 224064, 241180, 248960, 280080, 289416, 298752, 357120, 361770, 373440, 385888, 434124, 448128, 482360, 497920, 542655, 560160, 578832, 723540, 746880, 771776, 868248, 896256, 964720, 1085310, 1120320, 1157664, 1447080, 1493760, 1543552, 1736496, 1929440, 2170620, 2240640, 2315328, 2894160, 3087104, 3472992, 3858880, 4341240, 4481280, 4630656, 5788320, 6945984, 7717760, 8682480, 9261312, 11576640, 13891968, 15435520, 17364960, 23153280, 27783936, 34729920, 46306560, 69459840, 138919680]

約数ペア:

[(1, 138919680), (2, 69459840), (3, 46306560), (4, 34729920), (5, 27783936), (6, 23153280), (8, 17364960), (9, 15435520), (10, 13891968), (12, 11576640), (15, 9261312), (16, 8682480), (18, 7717760), (20, 6945984), (24, 5788320), (30, 4630656), (31, 4481280), (32, 4341240), (36, 3858880), (40, 3472992), (45, 3087104), (48, 2894160), (60, 2315328), (62, 2240640), (64, 2170620), (72, 1929440), (80, 1736496), (90, 1543552), (93, 1493760), (96, 1447080), (120, 1157664), (124, 1120320), (128, 1085310), (144, 964720), (155, 896256), (160, 868248), (180, 771776), (186, 746880), (192, 723540), (240, 578832), (248, 560160), (256, 542655), (279, 497920), (288, 482360), (310, 448128), (320, 434124), (360, 385888), (372, 373440), (384, 361770), (389, 357120), (465, 298752), (480, 289416), (496, 280080), (558, 248960), (576, 241180), (620, 224064), (640, 217062), (720, 192944), (744, 186720), (768, 180885), (778, 178560), (930, 149376), (960, 144708), (992, 140040), (1116, 124480), (1152, 120590), (1167, 119040), (1240, 112032), (1280, 108531), (1395, 99584), (1440, 96472), (1488, 93360), (1556, 89280), (1860, 74688), (1920, 72354), (1945, 71424), (1984, 70020), (2232, 62240), (2304, 60295), (2334, 59520), (2480, 56016), (2790, 49792), (2880, 48236), (2976, 46680), (3112, 44640), (3501, 39680), (3720, 37344), (3840, 36177), (3890, 35712), (3968, 35010), (4464, 31120), (4668, 29760), (4960, 28008), (5580, 24896), (5760, 24118), (5835, 23808), (5952, 23340), (6224, 22320), (7002, 19840), (7440, 18672), (7780, 17856), (7936, 17505), (8928, 15560), (9336, 14880), (9920, 14004), (11160, 12448), (11520, 12059), (11670, 11904)]