204558160

素因数分解:

$2^4\times 5^1\times {\mathrm{2556977}}^1$

素因数の和:2556990

約数の個数: 20

約数和(自身を含む): 475597908

約数和(自身を除く): 271039748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2556977, 5113954, 10227908, 12784885, 20455816, 25569770, 40911632, 51139540, 102279080, 204558160]

約数ペア:

[(1, 204558160), (2, 102279080), (4, 51139540), (5, 40911632), (8, 25569770), (10, 20455816), (16, 12784885), (20, 10227908), (40, 5113954), (80, 2556977)]