256460729

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{1289}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 300600960

約数和(自身を除く): 44140231

約数列:

[1, 7, 43, 301, 661, 1289, 4627, 9023, 28423, 55427, 198961, 387989, 852029, 5964203, 36637247, 256460729]

約数ペア:

[(1, 256460729), (7, 36637247), (43, 5964203), (301, 852029), (661, 387989), (1289, 198961), (4627, 55427), (9023, 28423)]