25536640

素因数分解:

$2^7\times 5^1\times {\mathrm{39901}}^1$

素因数の和:39920

約数の個数: 32

約数和(自身を含む): 61050060

約数和(自身を除く): 35513420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 39901, 79802, 159604, 199505, 319208, 399010, 638416, 798020, 1276832, 1596040, 2553664, 3192080, 5107328, 6384160, 12768320, 25536640]

約数ペア:

[(1, 25536640), (2, 12768320), (4, 6384160), (5, 5107328), (8, 3192080), (10, 2553664), (16, 1596040), (20, 1276832), (32, 798020), (40, 638416), (64, 399010), (80, 319208), (128, 199505), (160, 159604), (320, 79802), (640, 39901)]