68391945

素因数分解:

$3^4\times 5^1\times {\mathrm{168869}}^1$

素因数の和:168886

約数の個数: 20

約数和(自身を含む): 122599620

約数和(自身を除く): 54207675

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 168869, 506607, 844345, 1519821, 2533035, 4559463, 7599105, 13678389, 22797315, 68391945]

約数ペア:

[(1, 68391945), (3, 22797315), (5, 13678389), (9, 7599105), (15, 4559463), (27, 2533035), (45, 1519821), (81, 844345), (135, 506607), (405, 168869)]