81986165

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{12301}}^1$

素因数の和:12380

約数の個数: 16

約数和(自身を含む): 103927296

約数和(自身を除く): 21941131

約数列:

[1, 5, 31, 43, 155, 215, 1333, 6665, 12301, 61505, 381331, 528943, 1906655, 2644715, 16397233, 81986165]

約数ペア:

[(1, 81986165), (5, 16397233), (31, 2644715), (43, 1906655), (155, 528943), (215, 381331), (1333, 61505), (6665, 12301)]