257753600

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1549}}^1$

素因数の和:1590

約数の個数: 120

約数和(自身を含む): 688172100

約数和(自身を除く): 430418500

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 512, 520, 640, 650, 800, 832, 1040, 1280, 1300, 1549, 1600, 1664, 2080, 2560, 2600, 3098, 3200, 3328, 4160, 5200, 6196, 6400, 6656, 7745, 8320, 10400, 12392, 12800, 15490, 16640, 20137, 20800, 24784, 30980, 33280, 38725, 40274, 41600, 49568, 61960, 77450, 80548, 83200, 99136, 100685, 123920, 154900, 161096, 166400, 198272, 201370, 247840, 309800, 322192, 396544, 402740, 495680, 503425, 619600, 644384, 793088, 805480, 991360, 1006850, 1239200, 1288768, 1610960, 1982720, 2013700, 2478400, 2577536, 3221920, 3965440, 4027400, 4956800, 5155072, 6443840, 8054800, 9913600, 10310144, 12887680, 16109600, 19827200, 25775360, 32219200, 51550720, 64438400, 128876800, 257753600]

約数ペア:

[(1, 257753600), (2, 128876800), (4, 64438400), (5, 51550720), (8, 32219200), (10, 25775360), (13, 19827200), (16, 16109600), (20, 12887680), (25, 10310144), (26, 9913600), (32, 8054800), (40, 6443840), (50, 5155072), (52, 4956800), (64, 4027400), (65, 3965440), (80, 3221920), (100, 2577536), (104, 2478400), (128, 2013700), (130, 1982720), (160, 1610960), (200, 1288768), (208, 1239200), (256, 1006850), (260, 991360), (320, 805480), (325, 793088), (400, 644384), (416, 619600), (512, 503425), (520, 495680), (640, 402740), (650, 396544), (800, 322192), (832, 309800), (1040, 247840), (1280, 201370), (1300, 198272), (1549, 166400), (1600, 161096), (1664, 154900), (2080, 123920), (2560, 100685), (2600, 99136), (3098, 83200), (3200, 80548), (3328, 77450), (4160, 61960), (5200, 49568), (6196, 41600), (6400, 40274), (6656, 38725), (7745, 33280), (8320, 30980), (10400, 24784), (12392, 20800), (12800, 20137), (15490, 16640)]