19081480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2551}}^1$

素因数の和:2590

約数の個数: 64

約数和(自身を含む): 49610880

約数和(自身を除く): 30529400

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2551, 3740, 5102, 7480, 10204, 12755, 20408, 25510, 28061, 43367, 51020, 56122, 86734, 102040, 112244, 140305, 173468, 216835, 224488, 280610, 346936, 433670, 477037, 561220, 867340, 954074, 1122440, 1734680, 1908148, 2385185, 3816296, 4770370, 9540740, 19081480]

約数ペア:

[(1, 19081480), (2, 9540740), (4, 4770370), (5, 3816296), (8, 2385185), (10, 1908148), (11, 1734680), (17, 1122440), (20, 954074), (22, 867340), (34, 561220), (40, 477037), (44, 433670), (55, 346936), (68, 280610), (85, 224488), (88, 216835), (110, 173468), (136, 140305), (170, 112244), (187, 102040), (220, 86734), (340, 56122), (374, 51020), (440, 43367), (680, 28061), (748, 25510), (935, 20408), (1496, 12755), (1870, 10204), (2551, 7480), (3740, 5102)]