16000840

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1303}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 36146880

約数和(自身を除く): 20146040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1303, 1535, 2456, 2606, 3070, 5212, 6140, 6515, 10424, 12280, 13030, 26060, 52120, 400021, 800042, 1600084, 2000105, 3200168, 4000210, 8000420, 16000840]

約数ペア:

[(1, 16000840), (2, 8000420), (4, 4000210), (5, 3200168), (8, 2000105), (10, 1600084), (20, 800042), (40, 400021), (307, 52120), (614, 26060), (1228, 13030), (1303, 12280), (1535, 10424), (2456, 6515), (2606, 6140), (3070, 5212)]