15780915

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2677}}^1$

素因数の和:2819

約数の個数: 24

約数和(自身を含む): 27572688

約数和(自身を除く): 11791773

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 2677, 5895, 8031, 13385, 24093, 40155, 120465, 350687, 1052061, 1753435, 3156183, 5260305, 15780915]

約数ペア:

[(1, 15780915), (3, 5260305), (5, 3156183), (9, 1753435), (15, 1052061), (45, 350687), (131, 120465), (393, 40155), (655, 24093), (1179, 13385), (1965, 8031), (2677, 5895)]