2801540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20011}}^1$

素因数の和:20027

約数の個数: 24

約数和(自身を含む): 6724032

約数和(自身を除く): 3922492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20011, 40022, 80044, 100055, 140077, 200110, 280154, 400220, 560308, 700385, 1400770, 2801540]

約数ペア:

[(1, 2801540), (2, 1400770), (4, 700385), (5, 560308), (7, 400220), (10, 280154), (14, 200110), (20, 140077), (28, 100055), (35, 80044), (70, 40022), (140, 20011)]