20481580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146297}}^1$

素因数の和:146313

約数の個数: 24

約数和(自身を含む): 49156128

約数和(自身を除く): 28674548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146297, 292594, 585188, 731485, 1024079, 1462970, 2048158, 2925940, 4096316, 5120395, 10240790, 20481580]

約数ペア:

[(1, 20481580), (2, 10240790), (4, 5120395), (5, 4096316), (7, 2925940), (10, 2048158), (14, 1462970), (20, 1024079), (28, 731485), (35, 585188), (70, 292594), (140, 146297)]