13144720

素因数分解:

$2^4\times 5^1\times {\mathrm{164309}}^1$

素因数の和:164322

約数の個数: 20

約数和(自身を含む): 30561660

約数和(自身を除く): 17416940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 164309, 328618, 657236, 821545, 1314472, 1643090, 2628944, 3286180, 6572360, 13144720]

約数ペア:

[(1, 13144720), (2, 6572360), (4, 3286180), (5, 2628944), (8, 1643090), (10, 1314472), (16, 821545), (20, 657236), (40, 328618), (80, 164309)]