639804578

素因数分解:

$2^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{148861}}^1$

素因数の和:149177

約数の個数: 16

約数和(自身を含む): 1100387904

約数和(自身を除く): 460583326

約数列:

[1, 2, 7, 14, 307, 614, 2149, 4298, 148861, 297722, 1042027, 2084054, 45700327, 91400654, 319902289, 639804578]

約数ペア:

[(1, 639804578), (2, 319902289), (7, 91400654), (14, 45700327), (307, 2084054), (614, 1042027), (2149, 297722), (4298, 148861)]