20879390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42611}}^1$

素因数の和:42632

約数の個数: 24

約数和(自身を含む): 43719912

約数和(自身を除く): 22840522

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42611, 85222, 213055, 298277, 426110, 596554, 1491385, 2087939, 2982770, 4175878, 10439695, 20879390]

約数ペア:

[(1, 20879390), (2, 10439695), (5, 4175878), (7, 2982770), (10, 2087939), (14, 1491385), (35, 596554), (49, 426110), (70, 298277), (98, 213055), (245, 85222), (490, 42611)]