9681020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11257}}^1$

素因数の和:11309

約数の個数: 24

約数和(自身を含む): 20804784

約数和(自身を除く): 11123764

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 11257, 22514, 45028, 56285, 112570, 225140, 484051, 968102, 1936204, 2420255, 4840510, 9681020]

約数ペア:

[(1, 9681020), (2, 4840510), (4, 2420255), (5, 1936204), (10, 968102), (20, 484051), (43, 225140), (86, 112570), (172, 56285), (215, 45028), (430, 22514), (860, 11257)]