2021001040

素因数分解:

$2^4\times 5^1\times {\mathrm{25262513}}^1$

素因数の和:25262526

約数の個数: 20

約数和(自身を含む): 4698827604

約数和(自身を除く): 2677826564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25262513, 50525026, 101050052, 126312565, 202100104, 252625130, 404200208, 505250260, 1010500520, 2021001040]

約数ペア:

[(1, 2021001040), (2, 1010500520), (4, 505250260), (5, 404200208), (8, 252625130), (10, 202100104), (16, 126312565), (20, 101050052), (40, 50525026), (80, 25262513)]