20644180

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3319}}^1$

素因数の和:3639

約数の個数: 24

約数和(自身を含む): 43505280

約数和(自身を除く): 22861100

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 3319, 6220, 6638, 13276, 16595, 33190, 66380, 1032209, 2064418, 4128836, 5161045, 10322090, 20644180]

約数ペア:

[(1, 20644180), (2, 10322090), (4, 5161045), (5, 4128836), (10, 2064418), (20, 1032209), (311, 66380), (622, 33190), (1244, 16595), (1555, 13276), (3110, 6638), (3319, 6220)]