2008249940

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{219721}}^1$

素因数の和:220187

約数の個数: 24

約数和(自身を含む): 4226572392

約数和(自身を除く): 2218322452

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 4570, 9140, 219721, 439442, 878884, 1098605, 2197210, 4394420, 100412497, 200824994, 401649988, 502062485, 1004124970, 2008249940]

約数ペア:

[(1, 2008249940), (2, 1004124970), (4, 502062485), (5, 401649988), (10, 200824994), (20, 100412497), (457, 4394420), (914, 2197210), (1828, 1098605), (2285, 878884), (4570, 439442), (9140, 219721)]