128439772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{9337}}^1$

素因数の和:9541

約数の個数: 24

約数和(自身を含む): 237932240

約数和(自身を除く): 109492468

約数列:

[1, 2, 4, 19, 38, 76, 181, 362, 724, 3439, 6878, 9337, 13756, 18674, 37348, 177403, 354806, 709612, 1689997, 3379994, 6759988, 32109943, 64219886, 128439772]

約数ペア:

[(1, 128439772), (2, 64219886), (4, 32109943), (19, 6759988), (38, 3379994), (76, 1689997), (181, 709612), (362, 354806), (724, 177403), (3439, 37348), (6878, 18674), (9337, 13756)]