20997400

素因数分解:

$2^3\times 5^2\times {\mathrm{104987}}^1$

素因数の和:105003

約数の個数: 24

約数和(自身を含む): 48819420

約数和(自身を除く): 27822020

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 104987, 209974, 419948, 524935, 839896, 1049870, 2099740, 2624675, 4199480, 5249350, 10498700, 20997400]

約数ペア:

[(1, 20997400), (2, 10498700), (4, 5249350), (5, 4199480), (8, 2624675), (10, 2099740), (20, 1049870), (25, 839896), (40, 524935), (50, 419948), (100, 209974), (200, 104987)]