12935380

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1009}}^1$

素因数の和:1659

約数の個数: 24

約数和(自身を含む): 27233640

約数和(自身を除く): 14298260

約数列:

[1, 2, 4, 5, 10, 20, 641, 1009, 1282, 2018, 2564, 3205, 4036, 5045, 6410, 10090, 12820, 20180, 646769, 1293538, 2587076, 3233845, 6467690, 12935380]

約数ペア:

[(1, 12935380), (2, 6467690), (4, 3233845), (5, 2587076), (10, 1293538), (20, 646769), (641, 20180), (1009, 12820), (1282, 10090), (2018, 6410), (2564, 5045), (3205, 4036)]