1281956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 2451960

約数和(自身を除く): 1170004

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 277, 356, 554, 1108, 1157, 2314, 3601, 4628, 7202, 14404, 24653, 49306, 98612, 320489, 640978, 1281956]

約数ペア:

[(1, 1281956), (2, 640978), (4, 320489), (13, 98612), (26, 49306), (52, 24653), (89, 14404), (178, 7202), (277, 4628), (356, 3601), (554, 2314), (1108, 1157)]