13119280

素因数分解:

$2^4\times 5^1\times {\mathrm{163991}}^1$

素因数の和:164004

約数の個数: 20

約数和(自身を含む): 30502512

約数和(自身を除く): 17383232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163991, 327982, 655964, 819955, 1311928, 1639910, 2623856, 3279820, 6559640, 13119280]

約数ペア:

[(1, 13119280), (2, 6559640), (4, 3279820), (5, 2623856), (8, 1639910), (10, 1311928), (16, 819955), (20, 655964), (40, 327982), (80, 163991)]