2019949220

素因数分解:

$2^2\times 5^1\times {\mathrm{5023}}^1\times {\mathrm{20107}}^1$

素因数の和:25139

約数の個数: 24

約数和(自身を含む): 4242948864

約数和(自身を除く): 2222999644

約数列:

[1, 2, 4, 5, 10, 20, 5023, 10046, 20092, 20107, 25115, 40214, 50230, 80428, 100460, 100535, 201070, 402140, 100997461, 201994922, 403989844, 504987305, 1009974610, 2019949220]

約数ペア:

[(1, 2019949220), (2, 1009974610), (4, 504987305), (5, 403989844), (10, 201994922), (20, 100997461), (5023, 402140), (10046, 201070), (20092, 100535), (20107, 100460), (25115, 80428), (40214, 50230)]