138408255

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{161881}}^1$

素因数の和:161911

約数の個数: 24

約数和(自身を含む): 252535920

約数和(自身を除く): 114127665

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 161881, 485643, 809405, 1456929, 2428215, 3075739, 7284645, 9227217, 15378695, 27681651, 46136085, 138408255]

約数ペア:

[(1, 138408255), (3, 46136085), (5, 27681651), (9, 15378695), (15, 9227217), (19, 7284645), (45, 3075739), (57, 2428215), (95, 1456929), (171, 809405), (285, 485643), (855, 161881)]