81968715

素因数分解:

$3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{5857}}^1$

素因数の和:6179

約数の個数: 24

約数和(自身を含む): 142560288

約数和(自身を除く): 60591573

約数列:

[1, 3, 5, 9, 15, 45, 311, 933, 1555, 2799, 4665, 5857, 13995, 17571, 29285, 52713, 87855, 263565, 1821527, 5464581, 9107635, 16393743, 27322905, 81968715]

約数ペア:

[(1, 81968715), (3, 27322905), (5, 16393743), (9, 9107635), (15, 5464581), (45, 1821527), (311, 263565), (933, 87855), (1555, 52713), (2799, 29285), (4665, 17571), (5857, 13995)]