18458860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131849}}^1$

素因数の和:131865

約数の個数: 24

約数和(自身を含む): 44301600

約数和(自身を除く): 25842740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 131849, 263698, 527396, 659245, 922943, 1318490, 1845886, 2636980, 3691772, 4614715, 9229430, 18458860]

約数ペア:

[(1, 18458860), (2, 9229430), (4, 4614715), (5, 3691772), (7, 2636980), (10, 1845886), (14, 1318490), (20, 922943), (28, 659245), (35, 527396), (70, 263698), (140, 131849)]