30488720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8863}}^1$

素因数の和:8919

約数の個数: 40

約数和(自身を含む): 72542976

約数和(自身を除く): 42054256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8863, 17726, 35452, 44315, 70904, 88630, 141808, 177260, 354520, 381109, 709040, 762218, 1524436, 1905545, 3048872, 3811090, 6097744, 7622180, 15244360, 30488720]

約数ペア:

[(1, 30488720), (2, 15244360), (4, 7622180), (5, 6097744), (8, 3811090), (10, 3048872), (16, 1905545), (20, 1524436), (40, 762218), (43, 709040), (80, 381109), (86, 354520), (172, 177260), (215, 141808), (344, 88630), (430, 70904), (688, 44315), (860, 35452), (1720, 17726), (3440, 8863)]