311680

素因数分解:

$2^7\times 5^1\times {\mathrm{487}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 746640

約数和(自身を除く): 434960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 487, 640, 974, 1948, 2435, 3896, 4870, 7792, 9740, 15584, 19480, 31168, 38960, 62336, 77920, 155840, 311680]

約数ペア:

[(1, 311680), (2, 155840), (4, 77920), (5, 62336), (8, 38960), (10, 31168), (16, 19480), (20, 15584), (32, 9740), (40, 7792), (64, 4870), (80, 3896), (128, 2435), (160, 1948), (320, 974), (487, 640)]