8661920

素因数分解:

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

素因数の和:1317

約数の個数: 48

約数和(自身を含む): 20956320

約数和(自身を除く): 12294400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1259, 1376, 1720, 2518, 3440, 5036, 6295, 6880, 10072, 12590, 20144, 25180, 40288, 50360, 54137, 100720, 108274, 201440, 216548, 270685, 433096, 541370, 866192, 1082740, 1732384, 2165480, 4330960, 8661920]

約数ペア:

[(1, 8661920), (2, 4330960), (4, 2165480), (5, 1732384), (8, 1082740), (10, 866192), (16, 541370), (20, 433096), (32, 270685), (40, 216548), (43, 201440), (80, 108274), (86, 100720), (160, 54137), (172, 50360), (215, 40288), (344, 25180), (430, 20144), (688, 12590), (860, 10072), (1259, 6880), (1376, 6295), (1720, 5036), (2518, 3440)]