15578960

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1009}}^1$

素因数の和:1215

約数の個数: 40

約数和(自身を含む): 36444840

約数和(自身を除く): 20865880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1009, 1544, 1930, 2018, 3088, 3860, 4036, 5045, 7720, 8072, 10090, 15440, 16144, 20180, 40360, 80720, 194737, 389474, 778948, 973685, 1557896, 1947370, 3115792, 3894740, 7789480, 15578960]

約数ペア:

[(1, 15578960), (2, 7789480), (4, 3894740), (5, 3115792), (8, 1947370), (10, 1557896), (16, 973685), (20, 778948), (40, 389474), (80, 194737), (193, 80720), (386, 40360), (772, 20180), (965, 16144), (1009, 15440), (1544, 10090), (1930, 8072), (2018, 7720), (3088, 5045), (3860, 4036)]