258200

素因数分解:

$2^3\times 5^2\times {\mathrm{1291}}^1$

素因数の和:1307

約数の個数: 24

約数和(自身を含む): 600780

約数和(自身を除く): 342580

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1291, 2582, 5164, 6455, 10328, 12910, 25820, 32275, 51640, 64550, 129100, 258200]

約数ペア:

[(1, 258200), (2, 129100), (4, 64550), (5, 51640), (8, 32275), (10, 25820), (20, 12910), (25, 10328), (40, 6455), (50, 5164), (100, 2582), (200, 1291)]