79906780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{479}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 177408000

約数和(自身を除く): 97501220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 439, 479, 878, 958, 1756, 1916, 2195, 2395, 4390, 4790, 8341, 8780, 9101, 9580, 16682, 18202, 33364, 36404, 41705, 45505, 83410, 91010, 166820, 182020, 210281, 420562, 841124, 1051405, 2102810, 3995339, 4205620, 7990678, 15981356, 19976695, 39953390, 79906780]

約数ペア:

[(1, 79906780), (2, 39953390), (4, 19976695), (5, 15981356), (10, 7990678), (19, 4205620), (20, 3995339), (38, 2102810), (76, 1051405), (95, 841124), (190, 420562), (380, 210281), (439, 182020), (479, 166820), (878, 91010), (958, 83410), (1756, 45505), (1916, 41705), (2195, 36404), (2395, 33364), (4390, 18202), (4790, 16682), (8341, 9580), (8780, 9101)]