15920145

素因数分解:

$3^5\times 5^1\times {\mathrm{13103}}^1$

素因数の和:13123

約数の個数: 24

約数和(自身を含む): 28619136

約数和(自身を除く): 12698991

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 13103, 39309, 65515, 117927, 196545, 353781, 589635, 1061343, 1768905, 3184029, 5306715, 15920145]

約数ペア:

[(1, 15920145), (3, 5306715), (5, 3184029), (9, 1768905), (15, 1061343), (27, 589635), (45, 353781), (81, 196545), (135, 117927), (243, 65515), (405, 39309), (1215, 13103)]