890243365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{2003}}^1\times {\mathrm{8081}}^1$

素因数の和:10100

約数の個数: 16

約数和(自身を含む): 1166135616

約数和(自身を除く): 275892251

約数列:

[1, 5, 11, 55, 2003, 8081, 10015, 22033, 40405, 88891, 110165, 444455, 16186243, 80931215, 178048673, 890243365]

約数ペア:

[(1, 890243365), (5, 178048673), (11, 80931215), (55, 16186243), (2003, 444455), (8081, 110165), (10015, 88891), (22033, 40405)]