18675580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 49900032

約数和(自身を除く): 31224452

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 67, 70, 77, 110, 134, 140, 154, 181, 220, 268, 308, 335, 362, 385, 469, 670, 724, 737, 770, 905, 938, 1267, 1340, 1474, 1540, 1810, 1876, 1991, 2345, 2534, 2948, 3620, 3685, 3982, 4690, 5068, 5159, 6335, 7370, 7964, 9380, 9955, 10318, 12127, 12670, 13937, 14740, 19910, 20636, 24254, 25340, 25795, 27874, 39820, 48508, 51590, 55748, 60635, 69685, 84889, 103180, 121270, 133397, 139370, 169778, 242540, 266794, 278740, 339556, 424445, 533588, 666985, 848890, 933779, 1333970, 1697780, 1867558, 2667940, 3735116, 4668895, 9337790, 18675580]

約数ペア:

[(1, 18675580), (2, 9337790), (4, 4668895), (5, 3735116), (7, 2667940), (10, 1867558), (11, 1697780), (14, 1333970), (20, 933779), (22, 848890), (28, 666985), (35, 533588), (44, 424445), (55, 339556), (67, 278740), (70, 266794), (77, 242540), (110, 169778), (134, 139370), (140, 133397), (154, 121270), (181, 103180), (220, 84889), (268, 69685), (308, 60635), (335, 55748), (362, 51590), (385, 48508), (469, 39820), (670, 27874), (724, 25795), (737, 25340), (770, 24254), (905, 20636), (938, 19910), (1267, 14740), (1340, 13937), (1474, 12670), (1540, 12127), (1810, 10318), (1876, 9955), (1991, 9380), (2345, 7964), (2534, 7370), (2948, 6335), (3620, 5159), (3685, 5068), (3982, 4690)]