11405180

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1361}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 24025680

約数和(自身を除く): 12620500

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1361, 1676, 2095, 2722, 4190, 5444, 6805, 8380, 13610, 27220, 570259, 1140518, 2281036, 2851295, 5702590, 11405180]

約数ペア:

[(1, 11405180), (2, 5702590), (4, 2851295), (5, 2281036), (10, 1140518), (20, 570259), (419, 27220), (838, 13610), (1361, 8380), (1676, 6805), (2095, 5444), (2722, 4190)]