720778851

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{108079}}^1$

素因数の和:108120

約数の個数: 32

約数和(自身を含む): 1210496000

約数和(自身を除く): 489717149

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 6669, 108079, 324237, 972711, 1405027, 2053501, 2918133, 4215081, 6160503, 12645243, 18481509, 26695513, 37935729, 55444527, 80086539, 240259617, 720778851]

約数ペア:

[(1, 720778851), (3, 240259617), (9, 80086539), (13, 55444527), (19, 37935729), (27, 26695513), (39, 18481509), (57, 12645243), (117, 6160503), (171, 4215081), (247, 2918133), (351, 2053501), (513, 1405027), (741, 972711), (2223, 324237), (6669, 108079)]