81119715

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4057}}^1$

素因数の和:4139

約数の個数: 32

約数和(自身を含む): 137127936

約数和(自身を除く): 56008221

約数列:

[1, 3, 5, 15, 31, 43, 93, 129, 155, 215, 465, 645, 1333, 3999, 4057, 6665, 12171, 19995, 20285, 60855, 125767, 174451, 377301, 523353, 628835, 872255, 1886505, 2616765, 5407981, 16223943, 27039905, 81119715]

約数ペア:

[(1, 81119715), (3, 27039905), (5, 16223943), (15, 5407981), (31, 2616765), (43, 1886505), (93, 872255), (129, 628835), (155, 523353), (215, 377301), (465, 174451), (645, 125767), (1333, 60855), (3999, 20285), (4057, 19995), (6665, 12171)]