520012799995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2599999}}^1$

素因数の和:2600215

約数の個数: 32

約数和(自身を含む): 715478400000

約数和(自身を除く): 195465600005

約数列:

[1, 5, 13, 17, 65, 85, 181, 221, 905, 1105, 2353, 3077, 11765, 15385, 40001, 200005, 2599999, 12999995, 33799987, 44199983, 168999935, 220999915, 470599819, 574599779, 2352999095, 2872998895, 6117797647, 8000196923, 30588988235, 40000984615, 104002559999, 520012799995]

約数ペア:

[(1, 520012799995), (5, 104002559999), (13, 40000984615), (17, 30588988235), (65, 8000196923), (85, 6117797647), (181, 2872998895), (221, 2352999095), (905, 574599779), (1105, 470599819), (2353, 220999915), (3077, 168999935), (11765, 44199983), (15385, 33799987), (40001, 12999995), (200005, 2599999)]