257631840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 240

約数和(自身を含む): 922809888

約数和(自身を除く): 665178048

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, 72, 80, 81, 90, 96, 103, 108, 120, 135, 144, 160, 162, 180, 193, 206, 216, 240, 270, 288, 309, 324, 360, 386, 405, 412, 432, 480, 515, 540, 579, 618, 648, 720, 772, 810, 824, 864, 927, 965, 1030, 1080, 1158, 1236, 1296, 1440, 1544, 1545, 1620, 1648, 1737, 1854, 1930, 2060, 2160, 2316, 2472, 2592, 2781, 2895, 3088, 3090, 3240, 3296, 3474, 3708, 3860, 4120, 4320, 4632, 4635, 4944, 5211, 5562, 5790, 6176, 6180, 6480, 6948, 7416, 7720, 8240, 8343, 8685, 9264, 9270, 9888, 10422, 11124, 11580, 12360, 12960, 13896, 13905, 14832, 15440, 15633, 16480, 16686, 17370, 18528, 18540, 19879, 20844, 22248, 23160, 24720, 26055, 27792, 27810, 29664, 30880, 31266, 33372, 34740, 37080, 39758, 41688, 41715, 44496, 46320, 49440, 52110, 55584, 55620, 59637, 62532, 66744, 69480, 74160, 78165, 79516, 83376, 83430, 88992, 92640, 99395, 104220, 111240, 119274, 125064, 133488, 138960, 148320, 156330, 159032, 166752, 166860, 178911, 198790, 208440, 222480, 238548, 250128, 266976, 277920, 298185, 312660, 318064, 333720, 357822, 397580, 416880, 444960, 477096, 500256, 536733, 596370, 625320, 636128, 667440, 715644, 795160, 833760, 894555, 954192, 1073466, 1192740, 1250640, 1334880, 1431288, 1590320, 1610199, 1789110, 1908384, 2146932, 2385480, 2501280, 2683665, 2862576, 3180640, 3220398, 3578220, 4293864, 4770960, 5367330, 5725152, 6440796, 7156440, 8050995, 8587728, 9541920, 10734660, 12881592, 14312880, 16101990, 17175456, 21469320, 25763184, 28625760, 32203980, 42938640, 51526368, 64407960, 85877280, 128815920, 257631840]

約数ペア:

[(1, 257631840), (2, 128815920), (3, 85877280), (4, 64407960), (5, 51526368), (6, 42938640), (8, 32203980), (9, 28625760), (10, 25763184), (12, 21469320), (15, 17175456), (16, 16101990), (18, 14312880), (20, 12881592), (24, 10734660), (27, 9541920), (30, 8587728), (32, 8050995), (36, 7156440), (40, 6440796), (45, 5725152), (48, 5367330), (54, 4770960), (60, 4293864), (72, 3578220), (80, 3220398), (81, 3180640), (90, 2862576), (96, 2683665), (103, 2501280), (108, 2385480), (120, 2146932), (135, 1908384), (144, 1789110), (160, 1610199), (162, 1590320), (180, 1431288), (193, 1334880), (206, 1250640), (216, 1192740), (240, 1073466), (270, 954192), (288, 894555), (309, 833760), (324, 795160), (360, 715644), (386, 667440), (405, 636128), (412, 625320), (432, 596370), (480, 536733), (515, 500256), (540, 477096), (579, 444960), (618, 416880), (648, 397580), (720, 357822), (772, 333720), (810, 318064), (824, 312660), (864, 298185), (927, 277920), (965, 266976), (1030, 250128), (1080, 238548), (1158, 222480), (1236, 208440), (1296, 198790), (1440, 178911), (1544, 166860), (1545, 166752), (1620, 159032), (1648, 156330), (1737, 148320), (1854, 138960), (1930, 133488), (2060, 125064), (2160, 119274), (2316, 111240), (2472, 104220), (2592, 99395), (2781, 92640), (2895, 88992), (3088, 83430), (3090, 83376), (3240, 79516), (3296, 78165), (3474, 74160), (3708, 69480), (3860, 66744), (4120, 62532), (4320, 59637), (4632, 55620), (4635, 55584), (4944, 52110), (5211, 49440), (5562, 46320), (5790, 44496), (6176, 41715), (6180, 41688), (6480, 39758), (6948, 37080), (7416, 34740), (7720, 33372), (8240, 31266), (8343, 30880), (8685, 29664), (9264, 27810), (9270, 27792), (9888, 26055), (10422, 24720), (11124, 23160), (11580, 22248), (12360, 20844), (12960, 19879), (13896, 18540), (13905, 18528), (14832, 17370), (15440, 16686), (15633, 16480)]