139219280

素因数分解:

$2^4\times 5^1\times {\mathrm{1740241}}^1$

素因数の和:1740254

約数の個数: 20

約数和(自身を含む): 323685012

約数和(自身を除く): 184465732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1740241, 3480482, 6960964, 8701205, 13921928, 17402410, 27843856, 34804820, 69609640, 139219280]

約数ペア:

[(1, 139219280), (2, 69609640), (4, 34804820), (5, 27843856), (8, 17402410), (10, 13921928), (16, 8701205), (20, 6960964), (40, 3480482), (80, 1740241)]