138990097940

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{54720511}}^1$

素因数の和:54720647

約数の個数: 24

約数和(自身を含む): 294177472512

約数和(自身を除く): 155187374572

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 54720511, 109441022, 218882044, 273602555, 547205110, 1094410220, 6949504897, 13899009794, 27798019588, 34747524485, 69495048970, 138990097940]

約数ペア:

[(1, 138990097940), (2, 69495048970), (4, 34747524485), (5, 27798019588), (10, 13899009794), (20, 6949504897), (127, 1094410220), (254, 547205110), (508, 273602555), (635, 218882044), (1270, 109441022), (2540, 54720511)]