39778540

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1543}}^1$

素因数の和:2841

約数の個数: 24

約数和(自身を含む): 83653920

約数和(自身を除く): 43875380

約数列:

[1, 2, 4, 5, 10, 20, 1289, 1543, 2578, 3086, 5156, 6172, 6445, 7715, 12890, 15430, 25780, 30860, 1988927, 3977854, 7955708, 9944635, 19889270, 39778540]

約数ペア:

[(1, 39778540), (2, 19889270), (4, 9944635), (5, 7955708), (10, 3977854), (20, 1988927), (1289, 30860), (1543, 25780), (2578, 15430), (3086, 12890), (5156, 7715), (6172, 6445)]