16671340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{617}}^1$

素因数の和:826

約数の個数: 48

約数和(自身を含む): 40283712

約数和(自身を除く): 23612372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 617, 772, 965, 1234, 1351, 1930, 2468, 2702, 3085, 3860, 4319, 5404, 6170, 6755, 8638, 12340, 13510, 17276, 21595, 27020, 43190, 86380, 119081, 238162, 476324, 595405, 833567, 1190810, 1667134, 2381620, 3334268, 4167835, 8335670, 16671340]

約数ペア:

[(1, 16671340), (2, 8335670), (4, 4167835), (5, 3334268), (7, 2381620), (10, 1667134), (14, 1190810), (20, 833567), (28, 595405), (35, 476324), (70, 238162), (140, 119081), (193, 86380), (386, 43190), (617, 27020), (772, 21595), (965, 17276), (1234, 13510), (1351, 12340), (1930, 8638), (2468, 6755), (2702, 6170), (3085, 5404), (3860, 4319)]