81107475

素因数分解:

$3^1\times 5^2\times {\mathrm{337}}^1\times {\mathrm{3209}}^1$

素因数の和:3559

約数の個数: 24

約数和(自身を含む): 134537520

約数和(自身を除く): 53430045

約数列:

[1, 3, 5, 15, 25, 75, 337, 1011, 1685, 3209, 5055, 8425, 9627, 16045, 25275, 48135, 80225, 240675, 1081433, 3244299, 5407165, 16221495, 27035825, 81107475]

約数ペア:

[(1, 81107475), (3, 27035825), (5, 16221495), (15, 5407165), (25, 3244299), (75, 1081433), (337, 240675), (1011, 80225), (1685, 48135), (3209, 25275), (5055, 16045), (8425, 9627)]