20888025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{12109}}^1$

素因数の和:12145

約数の個数: 24

約数和(自身を含む): 36039360

約数和(自身を除く): 15151335

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 12109, 36327, 60545, 181635, 278507, 302725, 835521, 908175, 1392535, 4177605, 6962675, 20888025]

約数ペア:

[(1, 20888025), (3, 6962675), (5, 4177605), (15, 1392535), (23, 908175), (25, 835521), (69, 302725), (75, 278507), (115, 181635), (345, 60545), (575, 36327), (1725, 12109)]