13445680

素因数分解:

$2^4\times 5^1\times {\mathrm{168071}}^1$

素因数の和:168084

約数の個数: 20

約数和(自身を含む): 31261392

約数和(自身を除く): 17815712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 168071, 336142, 672284, 840355, 1344568, 1680710, 2689136, 3361420, 6722840, 13445680]

約数ペア:

[(1, 13445680), (2, 6722840), (4, 3361420), (5, 2689136), (8, 1680710), (10, 1344568), (16, 840355), (20, 672284), (40, 336142), (80, 168071)]