281540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2011}}^1$

素因数の和:2027

約数の個数: 24

約数和(自身を含む): 676032

約数和(自身を除く): 394492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2011, 4022, 8044, 10055, 14077, 20110, 28154, 40220, 56308, 70385, 140770, 281540]

約数ペア:

[(1, 281540), (2, 140770), (4, 70385), (5, 56308), (7, 40220), (10, 28154), (14, 20110), (20, 14077), (28, 10055), (35, 8044), (70, 4022), (140, 2011)]