389735906

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{128287}}^1$

素因数の和:128334

約数の個数: 24

約数和(自身を含む): 701991936

約数和(自身を除く): 312256030

約数列:

[1, 2, 7, 14, 31, 49, 62, 98, 217, 434, 1519, 3038, 128287, 256574, 898009, 1796018, 3976897, 6286063, 7953794, 12572126, 27838279, 55676558, 194867953, 389735906]

約数ペア:

[(1, 389735906), (2, 194867953), (7, 55676558), (14, 27838279), (31, 12572126), (49, 7953794), (62, 6286063), (98, 3976897), (217, 1796018), (434, 898009), (1519, 256574), (3038, 128287)]