8890780

素因数分解:

$2^2\times 5^1\times {\mathrm{444539}}^1$

素因数の和:444548

約数の個数: 12

約数和(自身を含む): 18670680

約数和(自身を除く): 9779900

約数列:

[1, 2, 4, 5, 10, 20, 444539, 889078, 1778156, 2222695, 4445390, 8890780]

約数ペア:

[(1, 8890780), (2, 4445390), (4, 2222695), (5, 1778156), (10, 889078), (20, 444539)]