1999921840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3571289}}^1$

素因数の和:3571309

約数の個数: 40

約数和(自身を含む): 5314079520

約数和(自身を除く): 3314157680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3571289, 7142578, 14285156, 17856445, 24999023, 28570312, 35712890, 49998046, 57140624, 71425780, 99996092, 124995115, 142851560, 199992184, 249990230, 285703120, 399984368, 499980460, 999960920, 1999921840]

約数ペア:

[(1, 1999921840), (2, 999960920), (4, 499980460), (5, 399984368), (7, 285703120), (8, 249990230), (10, 199992184), (14, 142851560), (16, 124995115), (20, 99996092), (28, 71425780), (35, 57140624), (40, 49998046), (56, 35712890), (70, 28570312), (80, 24999023), (112, 17856445), (140, 14285156), (280, 7142578), (560, 3571289)]