6440540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7489}}^1$

素因数の和:7541

約数の個数: 24

約数和(自身を含む): 13841520

約数和(自身を除く): 7400980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 7489, 14978, 29956, 37445, 74890, 149780, 322027, 644054, 1288108, 1610135, 3220270, 6440540]

約数ペア:

[(1, 6440540), (2, 3220270), (4, 1610135), (5, 1288108), (10, 644054), (20, 322027), (43, 149780), (86, 74890), (172, 37445), (215, 29956), (430, 14978), (860, 7489)]