68445845

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{81001}}^1$

素因数の和:81032

約数の個数: 12

約数和(自身を含む): 88940196

約数和(自身を除く): 20494351

約数列:

[1, 5, 13, 65, 169, 845, 81001, 405005, 1053013, 5265065, 13689169, 68445845]

約数ペア:

[(1, 68445845), (5, 13689169), (13, 5265065), (65, 1053013), (169, 405005), (845, 81001)]