260040305

素因数分解:

$5^1\times 7^4\times {\mathrm{21661}}^1$

素因数の和:21694

約数の個数: 20

約数和(自身を含む): 364051572

約数和(自身を除く): 104011267

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 12005, 21661, 108305, 151627, 758135, 1061389, 5306945, 7429723, 37148615, 52008061, 260040305]

約数ペア:

[(1, 260040305), (5, 52008061), (7, 37148615), (35, 7429723), (49, 5306945), (245, 1061389), (343, 758135), (1715, 151627), (2401, 108305), (12005, 21661)]