66689215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{25309}}^1$

素因数の和:25362

約数の個数: 16

約数和(自身を含む): 87471360

約数和(自身を除く): 20782145

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 25309, 126545, 430253, 784579, 2151265, 3922895, 13337843, 66689215]

約数ペア:

[(1, 66689215), (5, 13337843), (17, 3922895), (31, 2151265), (85, 784579), (155, 430253), (527, 126545), (2635, 25309)]