205413760

素因数分解:

$2^7\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1663}}^1$

素因数の和:1875

約数の個数: 64

約数和(自身を含む): 493908480

約数和(自身を除く): 288494720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 193, 320, 386, 640, 772, 965, 1544, 1663, 1930, 3088, 3326, 3860, 6176, 6652, 7720, 8315, 12352, 13304, 15440, 16630, 24704, 26608, 30880, 33260, 53216, 61760, 66520, 106432, 123520, 133040, 212864, 266080, 320959, 532160, 641918, 1064320, 1283836, 1604795, 2567672, 3209590, 5135344, 6419180, 10270688, 12838360, 20541376, 25676720, 41082752, 51353440, 102706880, 205413760]

約数ペア:

[(1, 205413760), (2, 102706880), (4, 51353440), (5, 41082752), (8, 25676720), (10, 20541376), (16, 12838360), (20, 10270688), (32, 6419180), (40, 5135344), (64, 3209590), (80, 2567672), (128, 1604795), (160, 1283836), (193, 1064320), (320, 641918), (386, 532160), (640, 320959), (772, 266080), (965, 212864), (1544, 133040), (1663, 123520), (1930, 106432), (3088, 66520), (3326, 61760), (3860, 53216), (6176, 33260), (6652, 30880), (7720, 26608), (8315, 24704), (12352, 16630), (13304, 15440)]