139904260

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{88547}}^1$

素因数の和:88635

約数の個数: 24

約数和(自身を含む): 297521280

約数和(自身を除く): 157617020

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 88547, 177094, 354188, 442735, 885470, 1770940, 6995213, 13990426, 27980852, 34976065, 69952130, 139904260]

約数ペア:

[(1, 139904260), (2, 69952130), (4, 34976065), (5, 27980852), (10, 13990426), (20, 6995213), (79, 1770940), (158, 885470), (316, 442735), (395, 354188), (790, 177094), (1580, 88547)]