280057581

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{80407}}^1$

素因数の和:80462

約数の個数: 20

約数和(自身を含む): 428092192

約数和(自身を除く): 148034611

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 80407, 241221, 723663, 2170989, 3457501, 6512967, 10372503, 31117509, 93352527, 280057581]

約数ペア:

[(1, 280057581), (3, 93352527), (9, 31117509), (27, 10372503), (43, 6512967), (81, 3457501), (129, 2170989), (387, 723663), (1161, 241221), (3483, 80407)]