128588715

素因数分解:

$3^4\times 5^1\times {\mathrm{317503}}^1$

素因数の和:317520

約数の個数: 20

約数和(自身を含む): 230507904

約数和(自身を除く): 101919189

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 317503, 952509, 1587515, 2857527, 4762545, 8572581, 14287635, 25717743, 42862905, 128588715]

約数ペア:

[(1, 128588715), (3, 42862905), (5, 25717743), (9, 14287635), (15, 8572581), (27, 4762545), (45, 2857527), (81, 1587515), (135, 952509), (405, 317503)]