20799428800

素因数分解:

$2^6\times 5^2\times {\mathrm{229}}^1\times {\mathrm{56767}}^1$

素因数の和:57018

約数の個数: 84

約数和(自身を含む): 51403991680

約数和(自身を除く): 30604562880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 229, 320, 400, 458, 800, 916, 1145, 1600, 1832, 2290, 3664, 4580, 5725, 7328, 9160, 11450, 14656, 18320, 22900, 36640, 45800, 56767, 73280, 91600, 113534, 183200, 227068, 283835, 366400, 454136, 567670, 908272, 1135340, 1419175, 1816544, 2270680, 2838350, 3633088, 4541360, 5676700, 9082720, 11353400, 12999643, 18165440, 22706800, 25999286, 45413600, 51998572, 64998215, 90827200, 103997144, 129996430, 207994288, 259992860, 324991075, 415988576, 519985720, 649982150, 831977152, 1039971440, 1299964300, 2079942880, 2599928600, 4159885760, 5199857200, 10399714400, 20799428800]

約数ペア:

[(1, 20799428800), (2, 10399714400), (4, 5199857200), (5, 4159885760), (8, 2599928600), (10, 2079942880), (16, 1299964300), (20, 1039971440), (25, 831977152), (32, 649982150), (40, 519985720), (50, 415988576), (64, 324991075), (80, 259992860), (100, 207994288), (160, 129996430), (200, 103997144), (229, 90827200), (320, 64998215), (400, 51998572), (458, 45413600), (800, 25999286), (916, 22706800), (1145, 18165440), (1600, 12999643), (1832, 11353400), (2290, 9082720), (3664, 5676700), (4580, 4541360), (5725, 3633088), (7328, 2838350), (9160, 2270680), (11450, 1816544), (14656, 1419175), (18320, 1135340), (22900, 908272), (36640, 567670), (45800, 454136), (56767, 366400), (73280, 283835), (91600, 227068), (113534, 183200)]