1808455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 2395008

約数和(自身を除く): 586553

約数列:

[1, 5, 11, 55, 131, 251, 655, 1255, 1441, 2761, 7205, 13805, 32881, 164405, 361691, 1808455]

約数ペア:

[(1, 1808455), (5, 361691), (11, 164405), (55, 32881), (131, 13805), (251, 7205), (655, 2761), (1255, 1441)]