409261420

素因数分解:

$2^2\times 5^1\times {\mathrm{4201}}^1\times {\mathrm{4871}}^1$

素因数の和:9081

約数の個数: 24

約数和(自身を含む): 859830048

約数和(自身を除く): 450568628

約数列:

[1, 2, 4, 5, 10, 20, 4201, 4871, 8402, 9742, 16804, 19484, 21005, 24355, 42010, 48710, 84020, 97420, 20463071, 40926142, 81852284, 102315355, 204630710, 409261420]

約数ペア:

[(1, 409261420), (2, 204630710), (4, 102315355), (5, 81852284), (10, 40926142), (20, 20463071), (4201, 97420), (4871, 84020), (8402, 48710), (9742, 42010), (16804, 24355), (19484, 21005)]