66407905

素因数分解:

$5^1\times {\mathrm{41}}^2\times {\mathrm{7901}}^1$

素因数の和:7988

約数の個数: 12

約数和(自身を含む): 81690876

約数和(自身を除く): 15282971

約数列:

[1, 5, 41, 205, 1681, 7901, 8405, 39505, 323941, 1619705, 13281581, 66407905]

約数ペア:

[(1, 66407905), (5, 13281581), (41, 1619705), (205, 323941), (1681, 39505), (7901, 8405)]