18962000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:541

約数の個数: 80

約数和(自身を含む): 48360000

約数和(自身を除く): 29398000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 250, 304, 380, 400, 475, 499, 500, 760, 950, 998, 1000, 1520, 1900, 1996, 2000, 2375, 2495, 3800, 3992, 4750, 4990, 7600, 7984, 9481, 9500, 9980, 12475, 18962, 19000, 19960, 24950, 37924, 38000, 39920, 47405, 49900, 62375, 75848, 94810, 99800, 124750, 151696, 189620, 199600, 237025, 249500, 379240, 474050, 499000, 758480, 948100, 998000, 1185125, 1896200, 2370250, 3792400, 4740500, 9481000, 18962000]

約数ペア:

[(1, 18962000), (2, 9481000), (4, 4740500), (5, 3792400), (8, 2370250), (10, 1896200), (16, 1185125), (19, 998000), (20, 948100), (25, 758480), (38, 499000), (40, 474050), (50, 379240), (76, 249500), (80, 237025), (95, 199600), (100, 189620), (125, 151696), (152, 124750), (190, 99800), (200, 94810), (250, 75848), (304, 62375), (380, 49900), (400, 47405), (475, 39920), (499, 38000), (500, 37924), (760, 24950), (950, 19960), (998, 19000), (1000, 18962), (1520, 12475), (1900, 9980), (1996, 9500), (2000, 9481), (2375, 7984), (2495, 7600), (3800, 4990), (3992, 4750)]