12657905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1009}}^1$

素因数の和:1220

約数の個数: 16

約数和(自身を含む): 16458960

約数和(自身を除く): 3801055

約数列:

[1, 5, 13, 65, 193, 965, 1009, 2509, 5045, 12545, 13117, 65585, 194737, 973685, 2531581, 12657905]

約数ペア:

[(1, 12657905), (5, 2531581), (13, 973685), (65, 194737), (193, 65585), (965, 13117), (1009, 12545), (2509, 5045)]