1380800

素因数分解:

$2^6\times 5^2\times {\mathrm{863}}^1$

素因数の和:885

約数の個数: 42

約数和(自身を含む): 3401568

約数和(自身を除く): 2020768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 863, 1600, 1726, 3452, 4315, 6904, 8630, 13808, 17260, 21575, 27616, 34520, 43150, 55232, 69040, 86300, 138080, 172600, 276160, 345200, 690400, 1380800]

約数ペア:

[(1, 1380800), (2, 690400), (4, 345200), (5, 276160), (8, 172600), (10, 138080), (16, 86300), (20, 69040), (25, 55232), (32, 43150), (40, 34520), (50, 27616), (64, 21575), (80, 17260), (100, 13808), (160, 8630), (200, 6904), (320, 4315), (400, 3452), (800, 1726), (863, 1600)]