20835225

素因数分解:

$3^4\times 5^2\times {\mathrm{10289}}^1$

素因数の和:10311

約数の個数: 30

約数和(自身を含む): 38597790

約数和(自身を除く): 17762565

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 10289, 30867, 51445, 92601, 154335, 257225, 277803, 463005, 771675, 833409, 1389015, 2315025, 4167045, 6945075, 20835225]

約数ペア:

[(1, 20835225), (3, 6945075), (5, 4167045), (9, 2315025), (15, 1389015), (25, 833409), (27, 771675), (45, 463005), (75, 277803), (81, 257225), (135, 154335), (225, 92601), (405, 51445), (675, 30867), (2025, 10289)]