81560778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{1045651}}^1$

素因数の和:1045669

約数の個数: 16

約数和(自身を含む): 175669536

約数和(自身を除く): 94108758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 1045651, 2091302, 3136953, 6273906, 13593463, 27186926, 40780389, 81560778]

約数ペア:

[(1, 81560778), (2, 40780389), (3, 27186926), (6, 13593463), (13, 6273906), (26, 3136953), (39, 2091302), (78, 1045651)]