85381390

素因数分解:

$2^1\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{4297}}^1$

素因数の和:6291

約数の個数: 16

約数和(自身を含む): 153799632

約数和(自身を除く): 68418242

約数列:

[1, 2, 5, 10, 1987, 3974, 4297, 8594, 9935, 19870, 21485, 42970, 8538139, 17076278, 42690695, 85381390]

約数ペア:

[(1, 85381390), (2, 42690695), (5, 17076278), (10, 8538139), (1987, 42970), (3974, 21485), (4297, 19870), (8594, 9935)]