261738308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{27809}}^1$

素因数の和:28007

約数の個数: 24

約数和(自身を含む): 496019160

約数和(自身を除く): 234280852

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2353, 4706, 9412, 27809, 55618, 111236, 361517, 723034, 1446068, 5033429, 10066858, 20133716, 65434577, 130869154, 261738308]

約数ペア:

[(1, 261738308), (2, 130869154), (4, 65434577), (13, 20133716), (26, 10066858), (52, 5033429), (181, 1446068), (362, 723034), (724, 361517), (2353, 111236), (4706, 55618), (9412, 27809)]