20421480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{170179}}^1$

素因数の和:170193

約数の個数: 32

約数和(自身を含む): 61264800

約数和(自身を除く): 40843320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 170179, 340358, 510537, 680716, 850895, 1021074, 1361432, 1701790, 2042148, 2552685, 3403580, 4084296, 5105370, 6807160, 10210740, 20421480]

約数ペア:

[(1, 20421480), (2, 10210740), (3, 6807160), (4, 5105370), (5, 4084296), (6, 3403580), (8, 2552685), (10, 2042148), (12, 1701790), (15, 1361432), (20, 1021074), (24, 850895), (30, 680716), (40, 510537), (60, 340358), (120, 170179)]