155840

素因数分解:

$2^6\times 5^1\times {\mathrm{487}}^1$

素因数の和:504

約数の個数: 28

約数和(自身を含む): 371856

約数和(自身を除く): 216016

約数列:

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

約数ペア:

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