256519680

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:416

約数の個数: 160

約数和(自身を含む): 829661184

約数和(自身を除く): 573141504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 127, 128, 160, 192, 240, 254, 256, 263, 320, 381, 384, 480, 508, 512, 526, 635, 640, 762, 768, 789, 960, 1016, 1052, 1270, 1280, 1315, 1524, 1536, 1578, 1905, 1920, 2032, 2104, 2540, 2560, 2630, 3048, 3156, 3810, 3840, 3945, 4064, 4208, 5080, 5260, 6096, 6312, 7620, 7680, 7890, 8128, 8416, 10160, 10520, 12192, 12624, 15240, 15780, 16256, 16832, 20320, 21040, 24384, 25248, 30480, 31560, 32512, 33401, 33664, 40640, 42080, 48768, 50496, 60960, 63120, 65024, 66802, 67328, 81280, 84160, 97536, 100203, 100992, 121920, 126240, 133604, 134656, 162560, 167005, 168320, 195072, 200406, 201984, 243840, 252480, 267208, 325120, 334010, 336640, 400812, 403968, 487680, 501015, 504960, 534416, 668020, 673280, 801624, 975360, 1002030, 1009920, 1068832, 1336040, 1603248, 2004060, 2019840, 2137664, 2672080, 3206496, 4008120, 4275328, 5344160, 6412992, 8016240, 8550656, 10688320, 12825984, 16032480, 17101312, 21376640, 25651968, 32064960, 42753280, 51303936, 64129920, 85506560, 128259840, 256519680]

約数ペア:

[(1, 256519680), (2, 128259840), (3, 85506560), (4, 64129920), (5, 51303936), (6, 42753280), (8, 32064960), (10, 25651968), (12, 21376640), (15, 17101312), (16, 16032480), (20, 12825984), (24, 10688320), (30, 8550656), (32, 8016240), (40, 6412992), (48, 5344160), (60, 4275328), (64, 4008120), (80, 3206496), (96, 2672080), (120, 2137664), (127, 2019840), (128, 2004060), (160, 1603248), (192, 1336040), (240, 1068832), (254, 1009920), (256, 1002030), (263, 975360), (320, 801624), (381, 673280), (384, 668020), (480, 534416), (508, 504960), (512, 501015), (526, 487680), (635, 403968), (640, 400812), (762, 336640), (768, 334010), (789, 325120), (960, 267208), (1016, 252480), (1052, 243840), (1270, 201984), (1280, 200406), (1315, 195072), (1524, 168320), (1536, 167005), (1578, 162560), (1905, 134656), (1920, 133604), (2032, 126240), (2104, 121920), (2540, 100992), (2560, 100203), (2630, 97536), (3048, 84160), (3156, 81280), (3810, 67328), (3840, 66802), (3945, 65024), (4064, 63120), (4208, 60960), (5080, 50496), (5260, 48768), (6096, 42080), (6312, 40640), (7620, 33664), (7680, 33401), (7890, 32512), (8128, 31560), (8416, 30480), (10160, 25248), (10520, 24384), (12192, 21040), (12624, 20320), (15240, 16832), (15780, 16256)]