290488072

素因数分解:

$2^3\times 7^3\times {\mathrm{105863}}^1$

素因数の和:105890

約数の個数: 32

約数和(自身を含む): 635184000

約数和(自身を除く): 344695928

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 105863, 211726, 423452, 741041, 846904, 1482082, 2964164, 5187287, 5928328, 10374574, 20749148, 36311009, 41498296, 72622018, 145244036, 290488072]

約数ペア:

[(1, 290488072), (2, 145244036), (4, 72622018), (7, 41498296), (8, 36311009), (14, 20749148), (28, 10374574), (49, 5928328), (56, 5187287), (98, 2964164), (196, 1482082), (343, 846904), (392, 741041), (686, 423452), (1372, 211726), (2744, 105863)]