31198765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1069}}^1$

素因数の和:1536

約数の個数: 16

約数和(自身を含む): 40446000

約数和(自身を除く): 9247235

約数列:

[1, 5, 13, 65, 449, 1069, 2245, 5345, 5837, 13897, 29185, 69485, 479981, 2399905, 6239753, 31198765]

約数ペア:

[(1, 31198765), (5, 6239753), (13, 2399905), (65, 479981), (449, 69485), (1069, 29185), (2245, 13897), (5345, 5837)]