25278885

素因数分解:

$3^4\times 5^1\times {\mathrm{62417}}^1$

素因数の和:62434

約数の個数: 20

約数和(自身を含む): 45315468

約数和(自身を除く): 20036583

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 62417, 187251, 312085, 561753, 936255, 1685259, 2808765, 5055777, 8426295, 25278885]

約数ペア:

[(1, 25278885), (3, 8426295), (5, 5055777), (9, 2808765), (15, 1685259), (27, 936255), (45, 561753), (81, 312085), (135, 187251), (405, 62417)]