20052920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 47628000

約数和(自身を除く): 27575080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 59, 116, 118, 145, 232, 236, 290, 293, 295, 472, 580, 586, 590, 1160, 1172, 1180, 1465, 1711, 2344, 2360, 2930, 3422, 5860, 6844, 8497, 8555, 11720, 13688, 16994, 17110, 17287, 33988, 34220, 34574, 42485, 67976, 68440, 69148, 84970, 86435, 138296, 169940, 172870, 339880, 345740, 501323, 691480, 1002646, 2005292, 2506615, 4010584, 5013230, 10026460, 20052920]

約数ペア:

[(1, 20052920), (2, 10026460), (4, 5013230), (5, 4010584), (8, 2506615), (10, 2005292), (20, 1002646), (29, 691480), (40, 501323), (58, 345740), (59, 339880), (116, 172870), (118, 169940), (145, 138296), (232, 86435), (236, 84970), (290, 69148), (293, 68440), (295, 67976), (472, 42485), (580, 34574), (586, 34220), (590, 33988), (1160, 17287), (1172, 17110), (1180, 16994), (1465, 13688), (1711, 11720), (2344, 8555), (2360, 8497), (2930, 6844), (3422, 5860)]