278868740

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{208111}}^1$

素因数の和:208187

約数の個数: 24

約数和(自身を含む): 594367872

約数和(自身を除く): 315499132

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 208111, 416222, 832444, 1040555, 2081110, 4162220, 13943437, 27886874, 55773748, 69717185, 139434370, 278868740]

約数ペア:

[(1, 278868740), (2, 139434370), (4, 69717185), (5, 55773748), (10, 27886874), (20, 13943437), (67, 4162220), (134, 2081110), (268, 1040555), (335, 832444), (670, 416222), (1340, 208111)]