13690480

素因数分解:

$2^4\times 5^1\times {\mathrm{171131}}^1$

素因数の和:171144

約数の個数: 20

約数和(自身を含む): 31830552

約数和(自身を除く): 18140072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 171131, 342262, 684524, 855655, 1369048, 1711310, 2738096, 3422620, 6845240, 13690480]

約数ペア:

[(1, 13690480), (2, 6845240), (4, 3422620), (5, 2738096), (8, 1711310), (10, 1369048), (16, 855655), (20, 684524), (40, 342262), (80, 171131)]