247707945

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{12539}}^1$

素因数の和:12989

約数の個数: 24

約数和(自身を含む): 430372800

約数和(自身を除く): 182664855

約数列:

[1, 3, 5, 9, 15, 45, 439, 1317, 2195, 3951, 6585, 12539, 19755, 37617, 62695, 112851, 188085, 564255, 5504621, 16513863, 27523105, 49541589, 82569315, 247707945]

約数ペア:

[(1, 247707945), (3, 82569315), (5, 49541589), (9, 27523105), (15, 16513863), (45, 5504621), (439, 564255), (1317, 188085), (2195, 112851), (3951, 62695), (6585, 37617), (12539, 19755)]