20408088670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{255133}}^1$

素因数の和:255580

約数の個数: 32

約数和(自身を含む): 38759957280

約数和(自身を除く): 18351868610

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 421, 842, 2105, 4210, 7999, 15998, 39995, 79990, 255133, 510266, 1275665, 2551330, 4847527, 9695054, 24237635, 48475270, 107410993, 214821986, 537054965, 1074109930, 2040808867, 4081617734, 10204044335, 20408088670]

約数ペア:

[(1, 20408088670), (2, 10204044335), (5, 4081617734), (10, 2040808867), (19, 1074109930), (38, 537054965), (95, 214821986), (190, 107410993), (421, 48475270), (842, 24237635), (2105, 9695054), (4210, 4847527), (7999, 2551330), (15998, 1275665), (39995, 510266), (79990, 255133)]