81386395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{9871}}^1$

素因数の和:9990

約数の個数: 16

約数和(自身を含む): 104485248

約数和(自身を除く): 23098853

約数列:

[1, 5, 17, 85, 97, 485, 1649, 8245, 9871, 49355, 167807, 839035, 957487, 4787435, 16277279, 81386395]

約数ペア:

[(1, 81386395), (5, 16277279), (17, 4787435), (85, 957487), (97, 839035), (485, 167807), (1649, 49355), (8245, 9871)]