261649724

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{68209}}^1$

素因数の和:68357

約数の個数: 24

約数和(自身を含む): 527126880

約数和(自身を除く): 265477156

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 68209, 136418, 272836, 477463, 954926, 1909852, 9344633, 18689266, 37378532, 65412431, 130824862, 261649724]

約数ペア:

[(1, 261649724), (2, 130824862), (4, 65412431), (7, 37378532), (14, 18689266), (28, 9344633), (137, 1909852), (274, 954926), (548, 477463), (959, 272836), (1918, 136418), (3836, 68209)]