128938376

素因数分解:

$2^3\times 7^1\times {\mathrm{2302471}}^1$

素因数の和:2302484

約数の個数: 16

約数和(自身を含む): 276296640

約数和(自身を除く): 147358264

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 2302471, 4604942, 9209884, 16117297, 18419768, 32234594, 64469188, 128938376]

約数ペア:

[(1, 128938376), (2, 64469188), (4, 32234594), (7, 18419768), (8, 16117297), (14, 9209884), (28, 4604942), (56, 2302471)]