66720835

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{25321}}^1$

素因数の和:25374

約数の個数: 16

約数和(自身を含む): 87512832

約数和(自身を除く): 20791997

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 25321, 126605, 430457, 784951, 2152285, 3924755, 13344167, 66720835]

約数ペア:

[(1, 66720835), (5, 13344167), (17, 3924755), (31, 2152285), (85, 784951), (155, 430457), (527, 126605), (2635, 25321)]