2211440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{359}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 6428160

約数和(自身を除く): 4216720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 359, 385, 440, 560, 616, 718, 770, 880, 1232, 1436, 1540, 1795, 2513, 2872, 3080, 3590, 3949, 5026, 5744, 6160, 7180, 7898, 10052, 12565, 14360, 15796, 19745, 20104, 25130, 27643, 28720, 31592, 39490, 40208, 50260, 55286, 63184, 78980, 100520, 110572, 138215, 157960, 201040, 221144, 276430, 315920, 442288, 552860, 1105720, 2211440]

約数ペア:

[(1, 2211440), (2, 1105720), (4, 552860), (5, 442288), (7, 315920), (8, 276430), (10, 221144), (11, 201040), (14, 157960), (16, 138215), (20, 110572), (22, 100520), (28, 78980), (35, 63184), (40, 55286), (44, 50260), (55, 40208), (56, 39490), (70, 31592), (77, 28720), (80, 27643), (88, 25130), (110, 20104), (112, 19745), (140, 15796), (154, 14360), (176, 12565), (220, 10052), (280, 7898), (308, 7180), (359, 6160), (385, 5744), (440, 5026), (560, 3949), (616, 3590), (718, 3080), (770, 2872), (880, 2513), (1232, 1795), (1436, 1540)]