81282255

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{126019}}^1$

素因数の和:126070

約数の個数: 16

約数和(自身を含む): 133077120

約数和(自身を除く): 51794865

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 126019, 378057, 630095, 1890285, 5418817, 16256451, 27094085, 81282255]

約数ペア:

[(1, 81282255), (3, 27094085), (5, 16256451), (15, 5418817), (43, 1890285), (129, 630095), (215, 378057), (645, 126019)]