20512487992

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{677}}^1\times {\mathrm{2791}}^1$

素因数の和:3556

約数の個数: 64

約数和(自身を含む): 40888281600

約数和(自身を除く): 20375793608

約数列:

[1, 2, 4, 8, 23, 46, 59, 92, 118, 184, 236, 472, 677, 1354, 1357, 2708, 2714, 2791, 5416, 5428, 5582, 10856, 11164, 15571, 22328, 31142, 39943, 62284, 64193, 79886, 124568, 128386, 159772, 164669, 256772, 319544, 329338, 513544, 658676, 918689, 1317352, 1837378, 1889507, 3674756, 3779014, 3787387, 7349512, 7558028, 7574774, 15116056, 15149548, 30299096, 43458661, 86917322, 111480913, 173834644, 222961826, 347669288, 445923652, 891847304, 2564060999, 5128121998, 10256243996, 20512487992]

約数ペア:

[(1, 20512487992), (2, 10256243996), (4, 5128121998), (8, 2564060999), (23, 891847304), (46, 445923652), (59, 347669288), (92, 222961826), (118, 173834644), (184, 111480913), (236, 86917322), (472, 43458661), (677, 30299096), (1354, 15149548), (1357, 15116056), (2708, 7574774), (2714, 7558028), (2791, 7349512), (5416, 3787387), (5428, 3779014), (5582, 3674756), (10856, 1889507), (11164, 1837378), (15571, 1317352), (22328, 918689), (31142, 658676), (39943, 513544), (62284, 329338), (64193, 319544), (79886, 256772), (124568, 164669), (128386, 159772)]