20698710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{689957}}^1$

素因数の和:689967

約数の個数: 16

約数和(自身を含む): 49676976

約数和(自身を除く): 28978266

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 689957, 1379914, 2069871, 3449785, 4139742, 6899570, 10349355, 20698710]

約数ペア:

[(1, 20698710), (2, 10349355), (3, 6899570), (5, 4139742), (6, 3449785), (10, 2069871), (15, 1379914), (30, 689957)]