20287615

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{743}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 25141248

約数和(自身を除く): 4853633

約数列:

[1, 5, 43, 127, 215, 635, 743, 3715, 5461, 27305, 31949, 94361, 159745, 471805, 4057523, 20287615]

約数ペア:

[(1, 20287615), (5, 4057523), (43, 471805), (127, 159745), (215, 94361), (635, 31949), (743, 27305), (3715, 5461)]