16665940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19379}}^1$

素因数の和:19431

約数の個数: 24

約数和(自身を含む): 35814240

約数和(自身を除く): 19148300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 19379, 38758, 77516, 96895, 193790, 387580, 833297, 1666594, 3333188, 4166485, 8332970, 16665940]

約数ペア:

[(1, 16665940), (2, 8332970), (4, 4166485), (5, 3333188), (10, 1666594), (20, 833297), (43, 387580), (86, 193790), (172, 96895), (215, 77516), (430, 38758), (860, 19379)]