20517700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29311}}^1$

素因数の和:29332

約数の個数: 36

約数和(自身を含む): 50885632

約数和(自身を除く): 30367932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 29311, 58622, 117244, 146555, 205177, 293110, 410354, 586220, 732775, 820708, 1025885, 1465550, 2051770, 2931100, 4103540, 5129425, 10258850, 20517700]

約数ペア:

[(1, 20517700), (2, 10258850), (4, 5129425), (5, 4103540), (7, 2931100), (10, 2051770), (14, 1465550), (20, 1025885), (25, 820708), (28, 732775), (35, 586220), (50, 410354), (70, 293110), (100, 205177), (140, 146555), (175, 117244), (350, 58622), (700, 29311)]