12689020

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2027}}^1$

素因数の和:2349

約数の個数: 24

約数和(自身を含む): 26745264

約数和(自身を除く): 14056244

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 2027, 3130, 4054, 6260, 8108, 10135, 20270, 40540, 634451, 1268902, 2537804, 3172255, 6344510, 12689020]

約数ペア:

[(1, 12689020), (2, 6344510), (4, 3172255), (5, 2537804), (10, 1268902), (20, 634451), (313, 40540), (626, 20270), (1252, 10135), (1565, 8108), (2027, 6260), (3130, 4054)]