20506780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146477}}^1$

素因数の和:146493

約数の個数: 24

約数和(自身を含む): 49216608

約数和(自身を除く): 28709828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146477, 292954, 585908, 732385, 1025339, 1464770, 2050678, 2929540, 4101356, 5126695, 10253390, 20506780]

約数ペア:

[(1, 20506780), (2, 10253390), (4, 5126695), (5, 4101356), (7, 2929540), (10, 2050678), (14, 1464770), (20, 1025339), (28, 732385), (35, 585908), (70, 292954), (140, 146477)]