28705005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{91127}}^1$

素因数の和:91145

約数の個数: 24

約数和(自身を含む): 56863872

約数和(自身を除く): 28158867

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 91127, 273381, 455635, 637889, 820143, 1366905, 1913667, 3189445, 4100715, 5741001, 9568335, 28705005]

約数ペア:

[(1, 28705005), (3, 9568335), (5, 5741001), (7, 4100715), (9, 3189445), (15, 1913667), (21, 1366905), (35, 820143), (45, 637889), (63, 455635), (105, 273381), (315, 91127)]