19589029780

素因数分解:

$2^2\times 5^1\times {\mathrm{979451489}}^1$

素因数の和:979451498

約数の個数: 12

約数和(自身を含む): 41136962580

約数和(自身を除く): 21547932800

約数列:

[1, 2, 4, 5, 10, 20, 979451489, 1958902978, 3917805956, 4897257445, 9794514890, 19589029780]

約数ペア:

[(1, 19589029780), (2, 9794514890), (4, 4897257445), (5, 3917805956), (10, 1958902978), (20, 979451489)]