2165480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1313

約数の個数: 32

約数和(自身を含む): 4989600

約数和(自身を除く): 2824120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1259, 1720, 2518, 5036, 6295, 10072, 12590, 25180, 50360, 54137, 108274, 216548, 270685, 433096, 541370, 1082740, 2165480]

約数ペア:

[(1, 2165480), (2, 1082740), (4, 541370), (5, 433096), (8, 270685), (10, 216548), (20, 108274), (40, 54137), (43, 50360), (86, 25180), (172, 12590), (215, 10072), (344, 6295), (430, 5036), (860, 2518), (1259, 1720)]