2018861825

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2089}}^1$

素因数の和:2202

約数の個数: 48

約数和(自身を含む): 2736729600

約数和(自身を除く): 717867775

約数列:

[1, 5, 25, 29, 31, 43, 145, 155, 215, 725, 775, 899, 1075, 1247, 1333, 2089, 4495, 6235, 6665, 10445, 22475, 31175, 33325, 38657, 52225, 60581, 64759, 89827, 193285, 302905, 323795, 449135, 966425, 1514525, 1618975, 1878011, 2245675, 2604983, 2784637, 9390055, 13024915, 13923185, 46950275, 65124575, 69615925, 80754473, 403772365, 2018861825]

約数ペア:

[(1, 2018861825), (5, 403772365), (25, 80754473), (29, 69615925), (31, 65124575), (43, 46950275), (145, 13923185), (155, 13024915), (215, 9390055), (725, 2784637), (775, 2604983), (899, 2245675), (1075, 1878011), (1247, 1618975), (1333, 1514525), (2089, 966425), (4495, 449135), (6235, 323795), (6665, 302905), (10445, 193285), (22475, 89827), (31175, 64759), (33325, 60581), (38657, 52225)]