20706380

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{3329}}^1$

素因数の和:3649

約数の個数: 24

約数和(自身を含む): 43636320

約数和(自身を除く): 22929940

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 3329, 6220, 6658, 13316, 16645, 33290, 66580, 1035319, 2070638, 4141276, 5176595, 10353190, 20706380]

約数ペア:

[(1, 20706380), (2, 10353190), (4, 5176595), (5, 4141276), (10, 2070638), (20, 1035319), (311, 66580), (622, 33290), (1244, 16645), (1555, 13316), (3110, 6658), (3329, 6220)]