18530989900

素因数分解:

$2^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1352627}}^1$

素因数の和:1352778

約数の個数: 36

約数和(自身を含む): 40505798088

約数和(自身を除く): 21974808188

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 137, 274, 548, 685, 1370, 2740, 3425, 6850, 13700, 1352627, 2705254, 5410508, 6763135, 13526270, 27052540, 33815675, 67631350, 135262700, 185309899, 370619798, 741239596, 926549495, 1853098990, 3706197980, 4632747475, 9265494950, 18530989900]

約数ペア:

[(1, 18530989900), (2, 9265494950), (4, 4632747475), (5, 3706197980), (10, 1853098990), (20, 926549495), (25, 741239596), (50, 370619798), (100, 185309899), (137, 135262700), (274, 67631350), (548, 33815675), (685, 27052540), (1370, 13526270), (2740, 6763135), (3425, 5410508), (6850, 2705254), (13700, 1352627)]