139217660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{161881}}^1$

素因数の和:161933

約数の個数: 24

約数和(自身を含む): 299157936

約数和(自身を除く): 159940276

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 161881, 323762, 647524, 809405, 1618810, 3237620, 6960883, 13921766, 27843532, 34804415, 69608830, 139217660]

約数ペア:

[(1, 139217660), (2, 69608830), (4, 34804415), (5, 27843532), (10, 13921766), (20, 6960883), (43, 3237620), (86, 1618810), (172, 809405), (215, 647524), (430, 323762), (860, 161881)]