18807366955

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{20743}}^1$

素因数の和:20840

約数の個数: 48

約数和(自身を含む): 25965679680

約数和(自身を除く): 7158312725

約数列:

[1, 5, 13, 29, 37, 65, 145, 169, 185, 377, 481, 845, 1073, 1885, 2405, 4901, 5365, 6253, 13949, 20743, 24505, 31265, 69745, 103715, 181337, 269659, 601547, 767491, 906685, 1348295, 3007735, 3505567, 3837455, 7820111, 9977383, 17527835, 22257239, 39100555, 49886915, 101661443, 111286195, 129705979, 289344107, 508307215, 648529895, 1446720535, 3761473391, 18807366955]

約数ペア:

[(1, 18807366955), (5, 3761473391), (13, 1446720535), (29, 648529895), (37, 508307215), (65, 289344107), (145, 129705979), (169, 111286195), (185, 101661443), (377, 49886915), (481, 39100555), (845, 22257239), (1073, 17527835), (1885, 9977383), (2405, 7820111), (4901, 3837455), (5365, 3505567), (6253, 3007735), (13949, 1348295), (20743, 906685), (24505, 767491), (31265, 601547), (69745, 269659), (103715, 181337)]