161819920

素因数分解:

$2^4\times 5^1\times {\mathrm{2022749}}^1$

素因数の和:2022762

約数の個数: 20

約数和(自身を含む): 376231500

約数和(自身を除く): 214411580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2022749, 4045498, 8090996, 10113745, 16181992, 20227490, 32363984, 40454980, 80909960, 161819920]

約数ペア:

[(1, 161819920), (2, 80909960), (4, 40454980), (5, 32363984), (8, 20227490), (10, 16181992), (16, 10113745), (20, 8090996), (40, 4045498), (80, 2022749)]