39999020

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19417}}^1$

素因数の和:19529

約数の個数: 24

約数和(自身を含む): 84817824

約数和(自身を除く): 44818804

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 19417, 38834, 77668, 97085, 194170, 388340, 1999951, 3999902, 7999804, 9999755, 19999510, 39999020]

約数ペア:

[(1, 39999020), (2, 19999510), (4, 9999755), (5, 7999804), (10, 3999902), (20, 1999951), (103, 388340), (206, 194170), (412, 97085), (515, 77668), (1030, 38834), (2060, 19417)]