81658376

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{237379}}^1$

素因数の和:237428

約数の個数: 16

約数和(自身を含む): 156670800

約数和(自身を除く): 75012424

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 237379, 474758, 949516, 1899032, 10207297, 20414594, 40829188, 81658376]

約数ペア:

[(1, 81658376), (2, 40829188), (4, 20414594), (8, 10207297), (43, 1899032), (86, 949516), (172, 474758), (344, 237379)]