128021255

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1\times {\mathrm{953}}^1$

素因数の和:1426

約数の個数: 16

約数和(自身を含む): 156471264

約数和(自身を除く): 28450009

約数列:

[1, 5, 67, 335, 401, 953, 2005, 4765, 26867, 63851, 134335, 319255, 382153, 1910765, 25604251, 128021255]

約数ペア:

[(1, 128021255), (5, 25604251), (67, 1910765), (335, 382153), (401, 319255), (953, 134335), (2005, 63851), (4765, 26867)]