28720740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{478679}}^1$

素因数の和:478691

約数の個数: 24

約数和(自身を含む): 80418240

約数和(自身を除く): 51697500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 478679, 957358, 1436037, 1914716, 2393395, 2872074, 4786790, 5744148, 7180185, 9573580, 14360370, 28720740]

約数ペア:

[(1, 28720740), (2, 14360370), (3, 9573580), (4, 7180185), (5, 5744148), (6, 4786790), (10, 2872074), (12, 2393395), (15, 1914716), (20, 1436037), (30, 957358), (60, 478679)]