3847940

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{457}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 8117592

約数和(自身を除く): 4269652

約数列:

[1, 2, 4, 5, 10, 20, 421, 457, 842, 914, 1684, 1828, 2105, 2285, 4210, 4570, 8420, 9140, 192397, 384794, 769588, 961985, 1923970, 3847940]

約数ペア:

[(1, 3847940), (2, 1923970), (4, 961985), (5, 769588), (10, 384794), (20, 192397), (421, 9140), (457, 8420), (842, 4570), (914, 4210), (1684, 2285), (1828, 2105)]