261616895

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{6761}}^1$

素因数の和:6946

約数の個数: 16

約数和(自身を含む): 321330240

約数和(自身を除く): 59713345

約数列:

[1, 5, 71, 109, 355, 545, 6761, 7739, 33805, 38695, 480031, 736949, 2400155, 3684745, 52323379, 261616895]

約数ペア:

[(1, 261616895), (5, 52323379), (71, 3684745), (109, 2400155), (355, 736949), (545, 480031), (6761, 38695), (7739, 33805)]