1327840

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 3226608

約数和(自身を除く): 1898768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 193, 215, 344, 386, 430, 688, 772, 860, 965, 1376, 1544, 1720, 1930, 3088, 3440, 3860, 6176, 6880, 7720, 8299, 15440, 16598, 30880, 33196, 41495, 66392, 82990, 132784, 165980, 265568, 331960, 663920, 1327840]

約数ペア:

[(1, 1327840), (2, 663920), (4, 331960), (5, 265568), (8, 165980), (10, 132784), (16, 82990), (20, 66392), (32, 41495), (40, 33196), (43, 30880), (80, 16598), (86, 15440), (160, 8299), (172, 7720), (193, 6880), (215, 6176), (344, 3860), (386, 3440), (430, 3088), (688, 1930), (772, 1720), (860, 1544), (965, 1376)]