20581540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147011}}^1$

素因数の和:147027

約数の個数: 24

約数和(自身を含む): 49396032

約数和(自身を除く): 28814492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147011, 294022, 588044, 735055, 1029077, 1470110, 2058154, 2940220, 4116308, 5145385, 10290770, 20581540]

約数ペア:

[(1, 20581540), (2, 10290770), (4, 5145385), (5, 4116308), (7, 2940220), (10, 2058154), (14, 1470110), (20, 1029077), (28, 735055), (35, 588044), (70, 294022), (140, 147011)]