8042540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 18627840

約数和(自身を除く): 10585300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 263, 278, 526, 556, 695, 1052, 1315, 1390, 1529, 2630, 2780, 2893, 3058, 5260, 5786, 6116, 7645, 11572, 14465, 15290, 28930, 30580, 36557, 57860, 73114, 146228, 182785, 365570, 402127, 731140, 804254, 1608508, 2010635, 4021270, 8042540]

約数ペア:

[(1, 8042540), (2, 4021270), (4, 2010635), (5, 1608508), (10, 804254), (11, 731140), (20, 402127), (22, 365570), (44, 182785), (55, 146228), (110, 73114), (139, 57860), (220, 36557), (263, 30580), (278, 28930), (526, 15290), (556, 14465), (695, 11572), (1052, 7645), (1315, 6116), (1390, 5786), (1529, 5260), (2630, 3058), (2780, 2893)]