159297980

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{18919}}^1$

素因数の和:19349

約数の個数: 24

約数和(自身を含む): 335338080

約数和(自身を除く): 176040100

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 18919, 37838, 75676, 94595, 189190, 378380, 7964899, 15929798, 31859596, 39824495, 79648990, 159297980]

約数ペア:

[(1, 159297980), (2, 79648990), (4, 39824495), (5, 31859596), (10, 15929798), (20, 7964899), (421, 378380), (842, 189190), (1684, 94595), (2105, 75676), (4210, 37838), (8420, 18919)]