129511212

素因数分解:

$2^2\times 3^1\times {\mathrm{1999}}^1\times {\mathrm{5399}}^1$

素因数の和:7405

約数の個数: 24

約数和(自身を含む): 302400000

約数和(自身を除く): 172888788

約数列:

[1, 2, 3, 4, 6, 12, 1999, 3998, 5399, 5997, 7996, 10798, 11994, 16197, 21596, 23988, 32394, 64788, 10792601, 21585202, 32377803, 43170404, 64755606, 129511212]

約数ペア:

[(1, 129511212), (2, 64755606), (3, 43170404), (4, 32377803), (6, 21585202), (12, 10792601), (1999, 64788), (3998, 32394), (5399, 23988), (5997, 21596), (7996, 16197), (10798, 11994)]