16943720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9851}}^1$

素因数の和:9905

約数の個数: 32

約数和(自身を含む): 39013920

約数和(自身を除く): 22070200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9851, 19702, 39404, 49255, 78808, 98510, 197020, 394040, 423593, 847186, 1694372, 2117965, 3388744, 4235930, 8471860, 16943720]

約数ペア:

[(1, 16943720), (2, 8471860), (4, 4235930), (5, 3388744), (8, 2117965), (10, 1694372), (20, 847186), (40, 423593), (43, 394040), (86, 197020), (172, 98510), (215, 78808), (344, 49255), (430, 39404), (860, 19702), (1720, 9851)]