13191280

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{911}}^1$

素因数の和:1105

約数の個数: 40

約数和(自身を含む): 30873024

約数和(自身を除く): 17681744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 911, 1448, 1810, 1822, 2896, 3620, 3644, 4555, 7240, 7288, 9110, 14480, 14576, 18220, 36440, 72880, 164891, 329782, 659564, 824455, 1319128, 1648910, 2638256, 3297820, 6595640, 13191280]

約数ペア:

[(1, 13191280), (2, 6595640), (4, 3297820), (5, 2638256), (8, 1648910), (10, 1319128), (16, 824455), (20, 659564), (40, 329782), (80, 164891), (181, 72880), (362, 36440), (724, 18220), (905, 14576), (911, 14480), (1448, 9110), (1810, 7288), (1822, 7240), (2896, 4555), (3620, 3644)]