16407940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19079}}^1$

素因数の和:19131

約数の個数: 24

約数和(自身を含む): 35259840

約数和(自身を除く): 18851900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 19079, 38158, 76316, 95395, 190790, 381580, 820397, 1640794, 3281588, 4101985, 8203970, 16407940]

約数ペア:

[(1, 16407940), (2, 8203970), (4, 4101985), (5, 3281588), (10, 1640794), (20, 820397), (43, 381580), (86, 190790), (172, 95395), (215, 76316), (430, 38158), (860, 19079)]