128225080

素因数分解:

$2^3\times 5^1\times {\mathrm{3205627}}^1$

素因数の和:3205638

約数の個数: 16

約数和(自身を含む): 288506520

約数和(自身を除く): 160281440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3205627, 6411254, 12822508, 16028135, 25645016, 32056270, 64112540, 128225080]

約数ペア:

[(1, 128225080), (2, 64112540), (4, 32056270), (5, 25645016), (8, 16028135), (10, 12822508), (20, 6411254), (40, 3205627)]