1815702040

素因数分解:

$2^3\times 5^1\times {\mathrm{947}}^1\times {\mathrm{47933}}^1$

素因数の和:48891

約数の個数: 32

約数和(自身を含む): 4089728880

約数和(自身を除く): 2274026840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 947, 1894, 3788, 4735, 7576, 9470, 18940, 37880, 47933, 95866, 191732, 239665, 383464, 479330, 958660, 1917320, 45392551, 90785102, 181570204, 226962755, 363140408, 453925510, 907851020, 1815702040]

約数ペア:

[(1, 1815702040), (2, 907851020), (4, 453925510), (5, 363140408), (8, 226962755), (10, 181570204), (20, 90785102), (40, 45392551), (947, 1917320), (1894, 958660), (3788, 479330), (4735, 383464), (7576, 239665), (9470, 191732), (18940, 95866), (37880, 47933)]