65736640

素因数分解:

$2^6\times 5^1\times {\mathrm{205427}}^1$

素因数の和:205444

約数の個数: 28

約数和(自身を含む): 156536136

約数和(自身を除く): 90799496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 205427, 410854, 821708, 1027135, 1643416, 2054270, 3286832, 4108540, 6573664, 8217080, 13147328, 16434160, 32868320, 65736640]

約数ペア:

[(1, 65736640), (2, 32868320), (4, 16434160), (5, 13147328), (8, 8217080), (10, 6573664), (16, 4108540), (20, 3286832), (32, 2054270), (40, 1643416), (64, 1027135), (80, 821708), (160, 410854), (320, 205427)]