279681356

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{641471}}^1$

素因数の和:641584

約数の個数: 12

約数和(自身を含む): 493933440

約数和(自身を除く): 214252084

約数列:

[1, 2, 4, 109, 218, 436, 641471, 1282942, 2565884, 69920339, 139840678, 279681356]

約数ペア:

[(1, 279681356), (2, 139840678), (4, 69920339), (109, 2565884), (218, 1282942), (436, 641471)]