12881080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7489}}^1$

素因数の和:7543

約数の個数: 32

約数和(自身を含む): 29660400

約数和(自身を除く): 16779320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7489, 14978, 29956, 37445, 59912, 74890, 149780, 299560, 322027, 644054, 1288108, 1610135, 2576216, 3220270, 6440540, 12881080]

約数ペア:

[(1, 12881080), (2, 6440540), (4, 3220270), (5, 2576216), (8, 1610135), (10, 1288108), (20, 644054), (40, 322027), (43, 299560), (86, 149780), (172, 74890), (215, 59912), (344, 37445), (430, 29956), (860, 14978), (1720, 7489)]