12880816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61927}}^1$

素因数の和:61948

約数の個数: 20

約数和(自身を含む): 26876752

約数和(自身を除く): 13995936

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 61927, 123854, 247708, 495416, 805051, 990832, 1610102, 3220204, 6440408, 12880816]

約数ペア:

[(1, 12880816), (2, 6440408), (4, 3220204), (8, 1610102), (13, 990832), (16, 805051), (26, 495416), (52, 247708), (104, 123854), (208, 61927)]