19804930

素因数分解:

$2^1\times 5^1\times {\mathrm{383}}^1\times {\mathrm{5171}}^1$

素因数の和:5561

約数の個数: 16

約数和(自身を含む): 35748864

約数和(自身を除く): 15943934

約数列:

[1, 2, 5, 10, 383, 766, 1915, 3830, 5171, 10342, 25855, 51710, 1980493, 3960986, 9902465, 19804930]

約数ペア:

[(1, 19804930), (2, 9902465), (5, 3960986), (10, 1980493), (383, 51710), (766, 25855), (1915, 10342), (3830, 5171)]