163640165

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{6247}}^1$

素因数の和:6309

約数の個数: 24

約数和(自身を含む): 219529728

約数和(自身を除く): 55889563

約数列:

[1, 5, 13, 31, 65, 155, 169, 403, 845, 2015, 5239, 6247, 26195, 31235, 81211, 193657, 406055, 968285, 1055743, 2517541, 5278715, 12587705, 32728033, 163640165]

約数ペア:

[(1, 163640165), (5, 32728033), (13, 12587705), (31, 5278715), (65, 2517541), (155, 1055743), (169, 968285), (403, 406055), (845, 193657), (2015, 81211), (5239, 31235), (6247, 26195)]