13158740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{487}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 31809792

約数和(自身を除く): 18651052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 487, 772, 965, 974, 1351, 1930, 1948, 2435, 2702, 3409, 3860, 4870, 5404, 6755, 6818, 9740, 13510, 13636, 17045, 27020, 34090, 68180, 93991, 187982, 375964, 469955, 657937, 939910, 1315874, 1879820, 2631748, 3289685, 6579370, 13158740]

約数ペア:

[(1, 13158740), (2, 6579370), (4, 3289685), (5, 2631748), (7, 1879820), (10, 1315874), (14, 939910), (20, 657937), (28, 469955), (35, 375964), (70, 187982), (140, 93991), (193, 68180), (386, 34090), (487, 27020), (772, 17045), (965, 13636), (974, 13510), (1351, 9740), (1930, 6818), (1948, 6755), (2435, 5404), (2702, 4870), (3409, 3860)]