680804919

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{271129}}^1$

素因数の和:271172

約数の個数: 20

約数和(自身を含む): 1049815360

約数和(自身を除く): 369010441

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 271129, 813387, 2440161, 7320483, 8404999, 21961449, 25214997, 75644991, 226934973, 680804919]

約数ペア:

[(1, 680804919), (3, 226934973), (9, 75644991), (27, 25214997), (31, 21961449), (81, 8404999), (93, 7320483), (279, 2440161), (837, 813387), (2511, 271129)]