15781264

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{4423}}^1$

素因数の和:4654

約数の個数: 20

約数和(自身を含む): 30720256

約数和(自身を除く): 14938992

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 4423, 8846, 17692, 35384, 70768, 986329, 1972658, 3945316, 7890632, 15781264]

約数ペア:

[(1, 15781264), (2, 7890632), (4, 3945316), (8, 1972658), (16, 986329), (223, 70768), (446, 35384), (892, 17692), (1784, 8846), (3568, 4423)]