20172047944

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81338903}}^1$

素因数の和:81338940

約数の個数: 16

約数和(自身を含む): 39042673920

約数和(自身を除く): 18870625976

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81338903, 162677806, 325355612, 650711224, 2521505993, 5043011986, 10086023972, 20172047944]

約数ペア:

[(1, 20172047944), (2, 10086023972), (4, 5043011986), (8, 2521505993), (31, 650711224), (62, 325355612), (124, 162677806), (248, 81338903)]