1393480640

素因数分解:

$2^6\times 5^1\times {\mathrm{4354627}}^1$

素因数の和:4354644

約数の個数: 28

約数和(自身を含む): 3318226536

約数和(自身を除く): 1924745896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4354627, 8709254, 17418508, 21773135, 34837016, 43546270, 69674032, 87092540, 139348064, 174185080, 278696128, 348370160, 696740320, 1393480640]

約数ペア:

[(1, 1393480640), (2, 696740320), (4, 348370160), (5, 278696128), (8, 174185080), (10, 139348064), (16, 87092540), (20, 69674032), (32, 43546270), (40, 34837016), (64, 21773135), (80, 17418508), (160, 8709254), (320, 4354627)]