18278055

素因数分解:

$3^4\times 5^1\times {\mathrm{45131}}^1$

素因数の和:45148

約数の個数: 20

約数和(自身を含む): 32765832

約数和(自身を除く): 14487777

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 45131, 135393, 225655, 406179, 676965, 1218537, 2030895, 3655611, 6092685, 18278055]

約数ペア:

[(1, 18278055), (3, 6092685), (5, 3655611), (9, 2030895), (15, 1218537), (27, 676965), (45, 406179), (81, 225655), (135, 135393), (405, 45131)]