200520509

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{65551}}^1$

素因数の和:65600

約数の個数: 16

約数和(自身を含む): 251719680

約数和(自身を除く): 51199171

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 65551, 458857, 1245469, 1507673, 8718283, 10553711, 28645787, 200520509]

約数ペア:

[(1, 200520509), (7, 28645787), (19, 10553711), (23, 8718283), (133, 1507673), (161, 1245469), (437, 458857), (3059, 65551)]