19157180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{709}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 46280640

約数和(自身を除く): 27123460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 709, 772, 965, 1351, 1418, 1930, 2702, 2836, 3545, 3860, 4963, 5404, 6755, 7090, 9926, 13510, 14180, 19852, 24815, 27020, 49630, 99260, 136837, 273674, 547348, 684185, 957859, 1368370, 1915718, 2736740, 3831436, 4789295, 9578590, 19157180]

約数ペア:

[(1, 19157180), (2, 9578590), (4, 4789295), (5, 3831436), (7, 2736740), (10, 1915718), (14, 1368370), (20, 957859), (28, 684185), (35, 547348), (70, 273674), (140, 136837), (193, 99260), (386, 49630), (709, 27020), (772, 24815), (965, 19852), (1351, 14180), (1418, 13510), (1930, 9926), (2702, 7090), (2836, 6755), (3545, 5404), (3860, 4963)]