256541760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{317}}^1$

素因数の和:621

約数の個数: 168

約数和(自身を含む): 888330456

約数和(自身を除く): 631788696

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 281, 288, 317, 320, 360, 480, 562, 576, 634, 720, 843, 951, 960, 1124, 1268, 1405, 1440, 1585, 1686, 1902, 2248, 2529, 2536, 2810, 2853, 2880, 3170, 3372, 3804, 4215, 4496, 4755, 5058, 5072, 5620, 5706, 6340, 6744, 7608, 8430, 8992, 9510, 10116, 10144, 11240, 11412, 12645, 12680, 13488, 14265, 15216, 16860, 17984, 19020, 20232, 20288, 22480, 22824, 25290, 25360, 26976, 28530, 30432, 33720, 38040, 40464, 44960, 45648, 50580, 50720, 53952, 57060, 60864, 67440, 76080, 80928, 89077, 89920, 91296, 101160, 101440, 114120, 134880, 152160, 161856, 178154, 182592, 202320, 228240, 267231, 269760, 304320, 356308, 404640, 445385, 456480, 534462, 712616, 801693, 809280, 890770, 912960, 1068924, 1336155, 1425232, 1603386, 1781540, 2137848, 2672310, 2850464, 3206772, 3563080, 4008465, 4275696, 5344620, 5700928, 6413544, 7126160, 8016930, 8551392, 10689240, 12827088, 14252320, 16033860, 17102784, 21378480, 25654176, 28504640, 32067720, 42756960, 51308352, 64135440, 85513920, 128270880, 256541760]

約数ペア:

[(1, 256541760), (2, 128270880), (3, 85513920), (4, 64135440), (5, 51308352), (6, 42756960), (8, 32067720), (9, 28504640), (10, 25654176), (12, 21378480), (15, 17102784), (16, 16033860), (18, 14252320), (20, 12827088), (24, 10689240), (30, 8551392), (32, 8016930), (36, 7126160), (40, 6413544), (45, 5700928), (48, 5344620), (60, 4275696), (64, 4008465), (72, 3563080), (80, 3206772), (90, 2850464), (96, 2672310), (120, 2137848), (144, 1781540), (160, 1603386), (180, 1425232), (192, 1336155), (240, 1068924), (281, 912960), (288, 890770), (317, 809280), (320, 801693), (360, 712616), (480, 534462), (562, 456480), (576, 445385), (634, 404640), (720, 356308), (843, 304320), (951, 269760), (960, 267231), (1124, 228240), (1268, 202320), (1405, 182592), (1440, 178154), (1585, 161856), (1686, 152160), (1902, 134880), (2248, 114120), (2529, 101440), (2536, 101160), (2810, 91296), (2853, 89920), (2880, 89077), (3170, 80928), (3372, 76080), (3804, 67440), (4215, 60864), (4496, 57060), (4755, 53952), (5058, 50720), (5072, 50580), (5620, 45648), (5706, 44960), (6340, 40464), (6744, 38040), (7608, 33720), (8430, 30432), (8992, 28530), (9510, 26976), (10116, 25360), (10144, 25290), (11240, 22824), (11412, 22480), (12645, 20288), (12680, 20232), (13488, 19020), (14265, 17984), (15216, 16860)]