19159940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22279}}^1$

素因数の和:22331

約数の個数: 24

約数和(自身を含む): 41173440

約数和(自身を除く): 22013500

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22279, 44558, 89116, 111395, 222790, 445580, 957997, 1915994, 3831988, 4789985, 9579970, 19159940]

約数ペア:

[(1, 19159940), (2, 9579970), (4, 4789985), (5, 3831988), (10, 1915994), (20, 957997), (43, 445580), (86, 222790), (172, 111395), (215, 89116), (430, 44558), (860, 22279)]