18748000

素因数分解:

$2^5\times 5^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 47567520

約数和(自身を除く): 28819520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 80, 86, 100, 109, 125, 160, 172, 200, 215, 218, 250, 344, 400, 430, 436, 500, 545, 688, 800, 860, 872, 1000, 1075, 1090, 1376, 1720, 1744, 2000, 2150, 2180, 2725, 3440, 3488, 4000, 4300, 4360, 4687, 5375, 5450, 6880, 8600, 8720, 9374, 10750, 10900, 13625, 17200, 17440, 18748, 21500, 21800, 23435, 27250, 34400, 37496, 43000, 43600, 46870, 54500, 74992, 86000, 87200, 93740, 109000, 117175, 149984, 172000, 187480, 218000, 234350, 374960, 436000, 468700, 585875, 749920, 937400, 1171750, 1874800, 2343500, 3749600, 4687000, 9374000, 18748000]

約数ペア:

[(1, 18748000), (2, 9374000), (4, 4687000), (5, 3749600), (8, 2343500), (10, 1874800), (16, 1171750), (20, 937400), (25, 749920), (32, 585875), (40, 468700), (43, 436000), (50, 374960), (80, 234350), (86, 218000), (100, 187480), (109, 172000), (125, 149984), (160, 117175), (172, 109000), (200, 93740), (215, 87200), (218, 86000), (250, 74992), (344, 54500), (400, 46870), (430, 43600), (436, 43000), (500, 37496), (545, 34400), (688, 27250), (800, 23435), (860, 21800), (872, 21500), (1000, 18748), (1075, 17440), (1090, 17200), (1376, 13625), (1720, 10900), (1744, 10750), (2000, 9374), (2150, 8720), (2180, 8600), (2725, 6880), (3440, 5450), (3488, 5375), (4000, 4687), (4300, 4360)]