128130160

素因数分解:

$2^4\times 5^1\times {\mathrm{1601627}}^1$

素因数の和:1601640

約数の個数: 20

約数和(自身を含む): 297902808

約数和(自身を除く): 169772648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1601627, 3203254, 6406508, 8008135, 12813016, 16016270, 25626032, 32032540, 64065080, 128130160]

約数ペア:

[(1, 128130160), (2, 64065080), (4, 32032540), (5, 25626032), (8, 16016270), (10, 12813016), (16, 8008135), (20, 6406508), (40, 3203254), (80, 1601627)]