9807938245

素因数分解:

$5^1\times 7^2\times {\mathrm{40032401}}^1$

素因数の和:40032420

約数の個数: 12

約数和(自身を含む): 13691081484

約数和(自身を除く): 3883143239

約数列:

[1, 5, 7, 35, 49, 245, 40032401, 200162005, 280226807, 1401134035, 1961587649, 9807938245]

約数ペア:

[(1, 9807938245), (5, 1961587649), (7, 1401134035), (35, 280226807), (49, 200162005), (245, 40032401)]