81019208

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{72859}}^1$

素因数の和:73004

約数の個数: 16

約数和(自身を含む): 153006000

約数和(自身を除く): 71986792

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 72859, 145718, 291436, 582872, 10127401, 20254802, 40509604, 81019208]

約数ペア:

[(1, 81019208), (2, 40509604), (4, 20254802), (8, 10127401), (139, 582872), (278, 291436), (556, 145718), (1112, 72859)]