20005840

素因数分解:

$2^4\times 5^1\times {\mathrm{250073}}^1$

素因数の和:250086

約数の個数: 20

約数和(自身を含む): 46513764

約数和(自身を除く): 26507924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 250073, 500146, 1000292, 1250365, 2000584, 2500730, 4001168, 5001460, 10002920, 20005840]

約数ペア:

[(1, 20005840), (2, 10002920), (4, 5001460), (5, 4001168), (8, 2500730), (10, 2000584), (16, 1250365), (20, 1000292), (40, 500146), (80, 250073)]