206514140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{6991}}^1$

素因数の和:7218

約数の個数: 48

約数和(自身を含む): 498054144

約数和(自身を除く): 291540004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 5908, 6991, 7385, 13982, 14770, 27964, 29540, 34955, 48937, 69910, 97874, 139820, 195748, 244685, 489370, 978740, 1475101, 2950202, 5900404, 7375505, 10325707, 14751010, 20651414, 29502020, 41302828, 51628535, 103257070, 206514140]

約数ペア:

[(1, 206514140), (2, 103257070), (4, 51628535), (5, 41302828), (7, 29502020), (10, 20651414), (14, 14751010), (20, 10325707), (28, 7375505), (35, 5900404), (70, 2950202), (140, 1475101), (211, 978740), (422, 489370), (844, 244685), (1055, 195748), (1477, 139820), (2110, 97874), (2954, 69910), (4220, 48937), (5908, 34955), (6991, 29540), (7385, 27964), (13982, 14770)]