20642140552

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1153}}^1\times {\mathrm{1553}}^1$

素因数の和:2854

約数の個数: 64

約数和(自身を含む): 42609188160

約数和(自身を除く): 21967047608

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 131, 262, 524, 1048, 1153, 1441, 1553, 2306, 2882, 3106, 4612, 5764, 6212, 9224, 11528, 12424, 12683, 17083, 25366, 34166, 50732, 68332, 101464, 136664, 151043, 203443, 302086, 406886, 604172, 813772, 1208344, 1627544, 1661473, 1790609, 2237873, 3322946, 3581218, 4475746, 6645892, 7162436, 8951492, 13291784, 14324872, 17902984, 19696699, 39393398, 78786796, 157573592, 234569779, 469139558, 938279116, 1876558232, 2580267569, 5160535138, 10321070276, 20642140552]

約数ペア:

[(1, 20642140552), (2, 10321070276), (4, 5160535138), (8, 2580267569), (11, 1876558232), (22, 938279116), (44, 469139558), (88, 234569779), (131, 157573592), (262, 78786796), (524, 39393398), (1048, 19696699), (1153, 17902984), (1441, 14324872), (1553, 13291784), (2306, 8951492), (2882, 7162436), (3106, 6645892), (4612, 4475746), (5764, 3581218), (6212, 3322946), (9224, 2237873), (11528, 1790609), (12424, 1661473), (12683, 1627544), (17083, 1208344), (25366, 813772), (34166, 604172), (50732, 406886), (68332, 302086), (101464, 203443), (136664, 151043)]