20538140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146701}}^1$

素因数の和:146717

約数の個数: 24

約数和(自身を含む): 49291872

約数和(自身を除く): 28753732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146701, 293402, 586804, 733505, 1026907, 1467010, 2053814, 2934020, 4107628, 5134535, 10269070, 20538140]

約数ペア:

[(1, 20538140), (2, 10269070), (4, 5134535), (5, 4107628), (7, 2934020), (10, 2053814), (14, 1467010), (20, 1026907), (28, 733505), (35, 586804), (70, 293402), (140, 146701)]