249771920

素因数分解:

$2^4\times 5^1\times {\mathrm{3122149}}^1$

素因数の和:3122162

約数の個数: 20

約数和(自身を含む): 580719900

約数和(自身を除く): 330947980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3122149, 6244298, 12488596, 15610745, 24977192, 31221490, 49954384, 62442980, 124885960, 249771920]

約数ペア:

[(1, 249771920), (2, 124885960), (4, 62442980), (5, 49954384), (8, 31221490), (10, 24977192), (16, 15610745), (20, 12488596), (40, 6244298), (80, 3122149)]