243400

素因数分解:

$2^3\times 5^2\times {\mathrm{1217}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 566370

約数和(自身を除く): 322970

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1217, 2434, 4868, 6085, 9736, 12170, 24340, 30425, 48680, 60850, 121700, 243400]

約数ペア:

[(1, 243400), (2, 121700), (4, 60850), (5, 48680), (8, 30425), (10, 24340), (20, 12170), (25, 9736), (40, 6085), (50, 4868), (100, 2434), (200, 1217)]