128259840

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:414

約数の個数: 144

約数和(自身を含む): 414425088

約数和(自身を除く): 286165248

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, 526, 635, 640, 762, 768, 789, 960, 1016, 1052, 1270, 1280, 1315, 1524, 1578, 1905, 1920, 2032, 2104, 2540, 2630, 3048, 3156, 3810, 3840, 3945, 4064, 4208, 5080, 5260, 6096, 6312, 7620, 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, 66802, 67328, 81280, 84160, 97536, 100203, 100992, 121920, 126240, 133604, 162560, 167005, 168320, 200406, 201984, 243840, 252480, 267208, 334010, 336640, 400812, 487680, 501015, 504960, 534416, 668020, 801624, 1002030, 1009920, 1068832, 1336040, 1603248, 2004060, 2137664, 2672080, 3206496, 4008120, 4275328, 5344160, 6412992, 8016240, 8550656, 10688320, 12825984, 16032480, 21376640, 25651968, 32064960, 42753280, 64129920, 128259840]

約数ペア:

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