77930860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1361}}^1$

素因数の和:1786

約数の個数: 48

約数和(自身を含む): 187629120

約数和(自身を除く): 109698260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 409, 818, 1361, 1636, 2045, 2722, 2863, 4090, 5444, 5726, 6805, 8180, 9527, 11452, 13610, 14315, 19054, 27220, 28630, 38108, 47635, 57260, 95270, 190540, 556649, 1113298, 2226596, 2783245, 3896543, 5566490, 7793086, 11132980, 15586172, 19482715, 38965430, 77930860]

約数ペア:

[(1, 77930860), (2, 38965430), (4, 19482715), (5, 15586172), (7, 11132980), (10, 7793086), (14, 5566490), (20, 3896543), (28, 2783245), (35, 2226596), (70, 1113298), (140, 556649), (409, 190540), (818, 95270), (1361, 57260), (1636, 47635), (2045, 38108), (2722, 28630), (2863, 27220), (4090, 19054), (5444, 14315), (5726, 13610), (6805, 11452), (8180, 9527)]