121536640

素因数分解:

$2^7\times 5^1\times {\mathrm{189901}}^1$

素因数の和:189920

約数の個数: 32

約数和(自身を含む): 290550060

約数和(自身を除く): 169013420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 189901, 379802, 759604, 949505, 1519208, 1899010, 3038416, 3798020, 6076832, 7596040, 12153664, 15192080, 24307328, 30384160, 60768320, 121536640]

約数ペア:

[(1, 121536640), (2, 60768320), (4, 30384160), (5, 24307328), (8, 15192080), (10, 12153664), (16, 7596040), (20, 6076832), (32, 3798020), (40, 3038416), (64, 1899010), (80, 1519208), (128, 949505), (160, 759604), (320, 379802), (640, 189901)]