128675520

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:360

約数の個数: 224

約数和(自身を含む): 464149440

約数和(自身を除く): 335473920

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, 53, 54, 60, 64, 72, 80, 90, 96, 106, 108, 120, 135, 144, 159, 160, 180, 192, 212, 216, 240, 265, 270, 281, 288, 318, 320, 360, 424, 432, 477, 480, 530, 540, 562, 576, 636, 720, 795, 843, 848, 864, 954, 960, 1060, 1080, 1124, 1272, 1405, 1431, 1440, 1590, 1686, 1696, 1728, 1908, 2120, 2160, 2248, 2385, 2529, 2544, 2810, 2862, 2880, 3180, 3372, 3392, 3816, 4215, 4240, 4320, 4496, 4770, 5058, 5088, 5620, 5724, 6360, 6744, 7155, 7587, 7632, 8430, 8480, 8640, 8992, 9540, 10116, 10176, 11240, 11448, 12645, 12720, 13488, 14310, 14893, 15174, 15264, 16860, 16960, 17984, 19080, 20232, 22480, 22896, 25290, 25440, 26976, 28620, 29786, 30348, 30528, 33720, 37935, 38160, 40464, 44679, 44960, 45792, 50580, 50880, 53952, 57240, 59572, 60696, 67440, 74465, 75870, 76320, 80928, 89358, 89920, 91584, 101160, 114480, 119144, 121392, 134037, 134880, 148930, 151740, 152640, 161856, 178716, 202320, 223395, 228960, 238288, 242784, 268074, 269760, 297860, 303480, 357432, 402111, 404640, 446790, 457920, 476576, 485568, 536148, 595720, 606960, 670185, 714864, 804222, 809280, 893580, 953152, 1072296, 1191440, 1213920, 1340370, 1429728, 1608444, 1787160, 2010555, 2144592, 2382880, 2427840, 2680740, 2859456, 3216888, 3574320, 4021110, 4289184, 4765760, 5361480, 6433776, 7148640, 8042220, 8578368, 10722960, 12867552, 14297280, 16084440, 21445920, 25735104, 32168880, 42891840, 64337760, 128675520]

約数ペア:

[(1, 128675520), (2, 64337760), (3, 42891840), (4, 32168880), (5, 25735104), (6, 21445920), (8, 16084440), (9, 14297280), (10, 12867552), (12, 10722960), (15, 8578368), (16, 8042220), (18, 7148640), (20, 6433776), (24, 5361480), (27, 4765760), (30, 4289184), (32, 4021110), (36, 3574320), (40, 3216888), (45, 2859456), (48, 2680740), (53, 2427840), (54, 2382880), (60, 2144592), (64, 2010555), (72, 1787160), (80, 1608444), (90, 1429728), (96, 1340370), (106, 1213920), (108, 1191440), (120, 1072296), (135, 953152), (144, 893580), (159, 809280), (160, 804222), (180, 714864), (192, 670185), (212, 606960), (216, 595720), (240, 536148), (265, 485568), (270, 476576), (281, 457920), (288, 446790), (318, 404640), (320, 402111), (360, 357432), (424, 303480), (432, 297860), (477, 269760), (480, 268074), (530, 242784), (540, 238288), (562, 228960), (576, 223395), (636, 202320), (720, 178716), (795, 161856), (843, 152640), (848, 151740), (864, 148930), (954, 134880), (960, 134037), (1060, 121392), (1080, 119144), (1124, 114480), (1272, 101160), (1405, 91584), (1431, 89920), (1440, 89358), (1590, 80928), (1686, 76320), (1696, 75870), (1728, 74465), (1908, 67440), (2120, 60696), (2160, 59572), (2248, 57240), (2385, 53952), (2529, 50880), (2544, 50580), (2810, 45792), (2862, 44960), (2880, 44679), (3180, 40464), (3372, 38160), (3392, 37935), (3816, 33720), (4215, 30528), (4240, 30348), (4320, 29786), (4496, 28620), (4770, 26976), (5058, 25440), (5088, 25290), (5620, 22896), (5724, 22480), (6360, 20232), (6744, 19080), (7155, 17984), (7587, 16960), (7632, 16860), (8430, 15264), (8480, 15174), (8640, 14893), (8992, 14310), (9540, 13488), (10116, 12720), (10176, 12645), (11240, 11448)]