18809920

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1367}}^1$

素因数の和:1427

約数の個数: 56

約数和(自身を含む): 45866304

約数和(自身を除く): 27056384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1367, 1376, 1720, 2734, 2752, 3440, 5468, 6835, 6880, 10936, 13670, 13760, 21872, 27340, 43744, 54680, 58781, 87488, 109360, 117562, 218720, 235124, 293905, 437440, 470248, 587810, 940496, 1175620, 1880992, 2351240, 3761984, 4702480, 9404960, 18809920]

約数ペア:

[(1, 18809920), (2, 9404960), (4, 4702480), (5, 3761984), (8, 2351240), (10, 1880992), (16, 1175620), (20, 940496), (32, 587810), (40, 470248), (43, 437440), (64, 293905), (80, 235124), (86, 218720), (160, 117562), (172, 109360), (215, 87488), (320, 58781), (344, 54680), (430, 43744), (688, 27340), (860, 21872), (1367, 13760), (1376, 13670), (1720, 10936), (2734, 6880), (2752, 6835), (3440, 5468)]