18888923960

素因数分解:

$2^3\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{468011}}^1$

素因数の和:469031

約数の個数: 32

約数和(自身を含む): 42542290800

約数和(自身を除く): 23653366840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1009, 2018, 4036, 5045, 8072, 10090, 20180, 40360, 468011, 936022, 1872044, 2340055, 3744088, 4680110, 9360220, 18720440, 472223099, 944446198, 1888892396, 2361115495, 3777784792, 4722230990, 9444461980, 18888923960]

約数ペア:

[(1, 18888923960), (2, 9444461980), (4, 4722230990), (5, 3777784792), (8, 2361115495), (10, 1888892396), (20, 944446198), (40, 472223099), (1009, 18720440), (2018, 9360220), (4036, 4680110), (5045, 3744088), (8072, 2340055), (10090, 1872044), (20180, 936022), (40360, 468011)]