20775136

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 43122240

約数和(自身を除く): 22347104

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 61, 116, 122, 232, 244, 367, 464, 488, 734, 928, 976, 1468, 1769, 1952, 2936, 3538, 5872, 7076, 10643, 11744, 14152, 21286, 22387, 28304, 42572, 44774, 56608, 85144, 89548, 170288, 179096, 340576, 358192, 649223, 716384, 1298446, 2596892, 5193784, 10387568, 20775136]

約数ペア:

[(1, 20775136), (2, 10387568), (4, 5193784), (8, 2596892), (16, 1298446), (29, 716384), (32, 649223), (58, 358192), (61, 340576), (116, 179096), (122, 170288), (232, 89548), (244, 85144), (367, 56608), (464, 44774), (488, 42572), (734, 28304), (928, 22387), (976, 21286), (1468, 14152), (1769, 11744), (1952, 10643), (2936, 7076), (3538, 5872)]