28137905

素因数分解:

$5^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 34344000

約数和(自身を除く): 6206095

約数列:

[1, 5, 149, 179, 211, 745, 895, 1055, 26671, 31439, 37769, 133355, 157195, 188845, 5627581, 28137905]

約数ペア:

[(1, 28137905), (5, 5627581), (149, 188845), (179, 157195), (211, 133355), (745, 37769), (895, 31439), (1055, 26671)]