28945755

素因数分解:

$3^4\times 5^1\times {\mathrm{71471}}^1$

素因数の和:71488

約数の個数: 20

約数和(自身を含む): 51888672

約数和(自身を除く): 22942917

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71471, 214413, 357355, 643239, 1072065, 1929717, 3216195, 5789151, 9648585, 28945755]

約数ペア:

[(1, 28945755), (3, 9648585), (5, 5789151), (9, 3216195), (15, 1929717), (27, 1072065), (45, 643239), (81, 357355), (135, 214413), (405, 71471)]