28328375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{13331}}^1$

素因数の和:13363

約数の個数: 16

約数和(自身を含む): 37436256

約数和(自身を除く): 9107881

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 13331, 66655, 226627, 333275, 1133135, 1666375, 5665675, 28328375]

約数ペア:

[(1, 28328375), (5, 5665675), (17, 1666375), (25, 1133135), (85, 333275), (125, 226627), (425, 66655), (2125, 13331)]