87112540

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{2687}}^1$

素因数の和:4317

約数の個数: 24

約数和(自身を含む): 183117312

約数和(自身を除く): 96004772

約数列:

[1, 2, 4, 5, 10, 20, 1621, 2687, 3242, 5374, 6484, 8105, 10748, 13435, 16210, 26870, 32420, 53740, 4355627, 8711254, 17422508, 21778135, 43556270, 87112540]

約数ペア:

[(1, 87112540), (2, 43556270), (4, 21778135), (5, 17422508), (10, 8711254), (20, 4355627), (1621, 53740), (2687, 32420), (3242, 26870), (5374, 16210), (6484, 13435), (8105, 10748)]