18425500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 41225184

約数和(自身を除く): 22799684

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 857, 860, 1075, 1714, 2150, 3428, 4285, 4300, 5375, 8570, 10750, 17140, 21425, 21500, 36851, 42850, 73702, 85700, 107125, 147404, 184255, 214250, 368510, 428500, 737020, 921275, 1842550, 3685100, 4606375, 9212750, 18425500]

約数ペア:

[(1, 18425500), (2, 9212750), (4, 4606375), (5, 3685100), (10, 1842550), (20, 921275), (25, 737020), (43, 428500), (50, 368510), (86, 214250), (100, 184255), (125, 147404), (172, 107125), (215, 85700), (250, 73702), (430, 42850), (500, 36851), (857, 21500), (860, 21425), (1075, 17140), (1714, 10750), (2150, 8570), (3428, 5375), (4285, 4300)]