21836871920

素因数分解:

$2^4\times 5^1\times {\mathrm{272960899}}^1$

素因数の和:272960912

約数の個数: 20

約数和(自身を含む): 50770727400

約数和(自身を除く): 28933855480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 272960899, 545921798, 1091843596, 1364804495, 2183687192, 2729608990, 4367374384, 5459217980, 10918435960, 21836871920]

約数ペア:

[(1, 21836871920), (2, 10918435960), (4, 5459217980), (5, 4367374384), (8, 2729608990), (10, 2183687192), (16, 1364804495), (20, 1091843596), (40, 545921798), (80, 272960899)]