8000420

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1303}}^1$

素因数の和:1619

約数の個数: 24

約数和(自身を含む): 16868544

約数和(自身を除く): 8868124

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1303, 1535, 2606, 3070, 5212, 6140, 6515, 13030, 26060, 400021, 800042, 1600084, 2000105, 4000210, 8000420]

約数ペア:

[(1, 8000420), (2, 4000210), (4, 2000105), (5, 1600084), (10, 800042), (20, 400021), (307, 26060), (614, 13030), (1228, 6515), (1303, 6140), (1535, 5212), (2606, 3070)]