18339800

素因数分解:

$2^3\times 5^2\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 43088760

約数和(自身を除く): 24748960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 107, 200, 214, 428, 535, 856, 857, 1070, 1714, 2140, 2675, 3428, 4280, 4285, 5350, 6856, 8570, 10700, 17140, 21400, 21425, 34280, 42850, 85700, 91699, 171400, 183398, 366796, 458495, 733592, 916990, 1833980, 2292475, 3667960, 4584950, 9169900, 18339800]

約数ペア:

[(1, 18339800), (2, 9169900), (4, 4584950), (5, 3667960), (8, 2292475), (10, 1833980), (20, 916990), (25, 733592), (40, 458495), (50, 366796), (100, 183398), (107, 171400), (200, 91699), (214, 85700), (428, 42850), (535, 34280), (856, 21425), (857, 21400), (1070, 17140), (1714, 10700), (2140, 8570), (2675, 6856), (3428, 5350), (4280, 4285)]