28326025

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12451}}^1$

素因数の和:12481

約数の個数: 24

約数和(自身を含む): 43233344

約数和(自身を除く): 14907319

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 12451, 62255, 87157, 161863, 311275, 435785, 809315, 1133041, 2178925, 4046575, 5665205, 28326025]

約数ペア:

[(1, 28326025), (5, 5665205), (7, 4046575), (13, 2178925), (25, 1133041), (35, 809315), (65, 435785), (91, 311275), (175, 161863), (325, 87157), (455, 62255), (2275, 12451)]