20648180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147487}}^1$

素因数の和:147503

約数の個数: 24

約数和(自身を含む): 49555968

約数和(自身を除く): 28907788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147487, 294974, 589948, 737435, 1032409, 1474870, 2064818, 2949740, 4129636, 5162045, 10324090, 20648180]

約数ペア:

[(1, 20648180), (2, 10324090), (4, 5162045), (5, 4129636), (7, 2949740), (10, 2064818), (14, 1474870), (20, 1032409), (28, 737435), (35, 589948), (70, 294974), (140, 147487)]