39978765

素因数分解:

$3^4\times 5^1\times {\mathrm{98713}}^1$

素因数の和:98730

約数の個数: 20

約数和(自身を含む): 71666364

約数和(自身を除く): 31687599

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 98713, 296139, 493565, 888417, 1480695, 2665251, 4442085, 7995753, 13326255, 39978765]

約数ペア:

[(1, 39978765), (3, 13326255), (5, 7995753), (9, 4442085), (15, 2665251), (27, 1480695), (45, 888417), (81, 493565), (135, 296139), (405, 98713)]