18468500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{859}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 41321280

約数和(自身を除く): 22852780

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 859, 860, 1075, 1718, 2150, 3436, 4295, 4300, 5375, 8590, 10750, 17180, 21475, 21500, 36937, 42950, 73874, 85900, 107375, 147748, 184685, 214750, 369370, 429500, 738740, 923425, 1846850, 3693700, 4617125, 9234250, 18468500]

約数ペア:

[(1, 18468500), (2, 9234250), (4, 4617125), (5, 3693700), (10, 1846850), (20, 923425), (25, 738740), (43, 429500), (50, 369370), (86, 214750), (100, 184685), (125, 147748), (172, 107375), (215, 85900), (250, 73874), (430, 42950), (500, 36937), (859, 21500), (860, 21475), (1075, 17180), (1718, 10750), (2150, 8590), (3436, 5375), (4295, 4300)]