18394520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5167}}^1$

素因数の和:5267

約数の個数: 32

約数和(自身を含む): 41860800

約数和(自身を除く): 23466280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5167, 10334, 20668, 25835, 41336, 51670, 103340, 206680, 459863, 919726, 1839452, 2299315, 3678904, 4598630, 9197260, 18394520]

約数ペア:

[(1, 18394520), (2, 9197260), (4, 4598630), (5, 3678904), (8, 2299315), (10, 1839452), (20, 919726), (40, 459863), (89, 206680), (178, 103340), (356, 51670), (445, 41336), (712, 25835), (890, 20668), (1780, 10334), (3560, 5167)]