64820015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{5167}}^1$

素因数の和:5378

約数の個数: 16

約数和(自身を含む): 84217728

約数和(自身を除く): 19397713

約数列:

[1, 5, 13, 65, 193, 965, 2509, 5167, 12545, 25835, 67171, 335855, 997231, 4986155, 12964003, 64820015]

約数ペア:

[(1, 64820015), (5, 12964003), (13, 4986155), (65, 997231), (193, 335855), (965, 67171), (2509, 25835), (5167, 12545)]