128221605

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{26141}}^1$

素因数の和:26261

約数の個数: 24

約数和(自身を含む): 224298360

約数和(自身を除く): 96076755

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905, 26141, 78423, 130705, 235269, 392115, 1176345, 2849369, 8548107, 14246845, 25644321, 42740535, 128221605]

約数ペア:

[(1, 128221605), (3, 42740535), (5, 25644321), (9, 14246845), (15, 8548107), (45, 2849369), (109, 1176345), (327, 392115), (545, 235269), (981, 130705), (1635, 78423), (4905, 26141)]