18489800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 50353920

約数和(自身を除く): 31864120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 47, 50, 56, 70, 94, 100, 140, 175, 188, 200, 235, 280, 281, 329, 350, 376, 470, 562, 658, 700, 940, 1124, 1175, 1316, 1400, 1405, 1645, 1880, 1967, 2248, 2350, 2632, 2810, 3290, 3934, 4700, 5620, 6580, 7025, 7868, 8225, 9400, 9835, 11240, 13160, 13207, 14050, 15736, 16450, 19670, 26414, 28100, 32900, 39340, 49175, 52828, 56200, 65800, 66035, 78680, 92449, 98350, 105656, 132070, 184898, 196700, 264140, 330175, 369796, 393400, 462245, 528280, 660350, 739592, 924490, 1320700, 1848980, 2311225, 2641400, 3697960, 4622450, 9244900, 18489800]

約数ペア:

[(1, 18489800), (2, 9244900), (4, 4622450), (5, 3697960), (7, 2641400), (8, 2311225), (10, 1848980), (14, 1320700), (20, 924490), (25, 739592), (28, 660350), (35, 528280), (40, 462245), (47, 393400), (50, 369796), (56, 330175), (70, 264140), (94, 196700), (100, 184898), (140, 132070), (175, 105656), (188, 98350), (200, 92449), (235, 78680), (280, 66035), (281, 65800), (329, 56200), (350, 52828), (376, 49175), (470, 39340), (562, 32900), (658, 28100), (700, 26414), (940, 19670), (1124, 16450), (1175, 15736), (1316, 14050), (1400, 13207), (1405, 13160), (1645, 11240), (1880, 9835), (1967, 9400), (2248, 8225), (2350, 7868), (2632, 7025), (2810, 6580), (3290, 5620), (3934, 4700)]