54711680

素因数分解:

$2^7\times 5^1\times {\mathrm{85487}}^1$

素因数の和:85506

約数の個数: 32

約数和(自身を含む): 130796640

約数和(自身を除く): 76084960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 85487, 170974, 341948, 427435, 683896, 854870, 1367792, 1709740, 2735584, 3419480, 5471168, 6838960, 10942336, 13677920, 27355840, 54711680]

約数ペア:

[(1, 54711680), (2, 27355840), (4, 13677920), (5, 10942336), (8, 6838960), (10, 5471168), (16, 3419480), (20, 2735584), (32, 1709740), (40, 1367792), (64, 854870), (80, 683896), (128, 427435), (160, 341948), (320, 170974), (640, 85487)]