20644275

素因数分解:

$3^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{673}}^1$

素因数の和:1095

約数の個数: 24

約数和(自身を含む): 34266160

約数和(自身を除く): 13621885

約数列:

[1, 3, 5, 15, 25, 75, 409, 673, 1227, 2019, 2045, 3365, 6135, 10095, 10225, 16825, 30675, 50475, 275257, 825771, 1376285, 4128855, 6881425, 20644275]

約数ペア:

[(1, 20644275), (3, 6881425), (5, 4128855), (15, 1376285), (25, 825771), (75, 275257), (409, 50475), (673, 30675), (1227, 16825), (2019, 10225), (2045, 10095), (3365, 6135)]