90645380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{937}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 218096256

約数和(自身を除く): 127450876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 691, 937, 1382, 1874, 2764, 3455, 3748, 4685, 4837, 6559, 6910, 9370, 9674, 13118, 13820, 18740, 19348, 24185, 26236, 32795, 48370, 65590, 96740, 131180, 647467, 1294934, 2589868, 3237335, 4532269, 6474670, 9064538, 12949340, 18129076, 22661345, 45322690, 90645380]

約数ペア:

[(1, 90645380), (2, 45322690), (4, 22661345), (5, 18129076), (7, 12949340), (10, 9064538), (14, 6474670), (20, 4532269), (28, 3237335), (35, 2589868), (70, 1294934), (140, 647467), (691, 131180), (937, 96740), (1382, 65590), (1874, 48370), (2764, 32795), (3455, 26236), (3748, 24185), (4685, 19348), (4837, 18740), (6559, 13820), (6910, 13118), (9370, 9674)]