87641905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{4001}}^1$

素因数の和:4356

約数の個数: 16

約数和(自身を含む): 113624784

約数和(自身を除く): 25982879

約数列:

[1, 5, 13, 65, 337, 1685, 4001, 4381, 20005, 21905, 52013, 260065, 1348337, 6741685, 17528381, 87641905]

約数ペア:

[(1, 87641905), (5, 17528381), (13, 6741685), (65, 1348337), (337, 260065), (1685, 52013), (4001, 21905), (4381, 20005)]