18178244

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 38330880

約数和(自身を除く): 20152636

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 61, 116, 122, 203, 244, 367, 406, 427, 734, 812, 854, 1468, 1708, 1769, 2569, 3538, 5138, 7076, 10276, 10643, 12383, 21286, 22387, 24766, 42572, 44774, 49532, 74501, 89548, 149002, 156709, 298004, 313418, 626836, 649223, 1298446, 2596892, 4544561, 9089122, 18178244]

約数ペア:

[(1, 18178244), (2, 9089122), (4, 4544561), (7, 2596892), (14, 1298446), (28, 649223), (29, 626836), (58, 313418), (61, 298004), (116, 156709), (122, 149002), (203, 89548), (244, 74501), (367, 49532), (406, 44774), (427, 42572), (734, 24766), (812, 22387), (854, 21286), (1468, 12383), (1708, 10643), (1769, 10276), (2569, 7076), (3538, 5138)]