4890020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1759}}^1$

素因数の和:1907

約数の個数: 24

約数和(自身を含む): 10348800

約数和(自身を除く): 5458780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 1759, 2780, 3518, 7036, 8795, 17590, 35180, 244501, 489002, 978004, 1222505, 2445010, 4890020]

約数ペア:

[(1, 4890020), (2, 2445010), (4, 1222505), (5, 978004), (10, 489002), (20, 244501), (139, 35180), (278, 17590), (556, 8795), (695, 7036), (1390, 3518), (1759, 2780)]