81289042

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{3907}}^1$

素因数の和:4113

約数の個数: 16

約数和(自身を含む): 124368192

約数和(自身を除く): 43079150

約数列:

[1, 2, 101, 103, 202, 206, 3907, 7814, 10403, 20806, 394607, 402421, 789214, 804842, 40644521, 81289042]

約数ペア:

[(1, 81289042), (2, 40644521), (101, 804842), (103, 789214), (202, 402421), (206, 394607), (3907, 20806), (7814, 10403)]