256638400

素因数分解:

$2^6\times 5^2\times {\mathrm{29}}^1\times {\mathrm{5531}}^1$

素因数の和:5582

約数の個数: 84

約数和(自身を含む): 653384520

約数和(自身を除く): 396746120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 40, 50, 58, 64, 80, 100, 116, 145, 160, 200, 232, 290, 320, 400, 464, 580, 725, 800, 928, 1160, 1450, 1600, 1856, 2320, 2900, 4640, 5531, 5800, 9280, 11062, 11600, 22124, 23200, 27655, 44248, 46400, 55310, 88496, 110620, 138275, 160399, 176992, 221240, 276550, 320798, 353984, 442480, 553100, 641596, 801995, 884960, 1106200, 1283192, 1603990, 1769920, 2212400, 2566384, 3207980, 4009975, 4424800, 5132768, 6415960, 8019950, 8849600, 10265536, 12831920, 16039900, 25663840, 32079800, 51327680, 64159600, 128319200, 256638400]

約数ペア:

[(1, 256638400), (2, 128319200), (4, 64159600), (5, 51327680), (8, 32079800), (10, 25663840), (16, 16039900), (20, 12831920), (25, 10265536), (29, 8849600), (32, 8019950), (40, 6415960), (50, 5132768), (58, 4424800), (64, 4009975), (80, 3207980), (100, 2566384), (116, 2212400), (145, 1769920), (160, 1603990), (200, 1283192), (232, 1106200), (290, 884960), (320, 801995), (400, 641596), (464, 553100), (580, 442480), (725, 353984), (800, 320798), (928, 276550), (1160, 221240), (1450, 176992), (1600, 160399), (1856, 138275), (2320, 110620), (2900, 88496), (4640, 55310), (5531, 46400), (5800, 44248), (9280, 27655), (11062, 23200), (11600, 22124)]