1292555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:418

約数の個数: 16

約数和(自身を含む): 1721088

約数和(自身を除く): 428533

約数列:

[1, 5, 11, 55, 71, 331, 355, 781, 1655, 3641, 3905, 18205, 23501, 117505, 258511, 1292555]

約数ペア:

[(1, 1292555), (5, 258511), (11, 117505), (55, 23501), (71, 18205), (331, 3905), (355, 3641), (781, 1655)]