128223340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{915881}}^1$

素因数の和:915897

約数の個数: 24

約数和(自身を含む): 307736352

約数和(自身を除く): 179513012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 915881, 1831762, 3663524, 4579405, 6411167, 9158810, 12822334, 18317620, 25644668, 32055835, 64111670, 128223340]

約数ペア:

[(1, 128223340), (2, 64111670), (4, 32055835), (5, 25644668), (7, 18317620), (10, 12822334), (14, 9158810), (20, 6411167), (28, 4579405), (35, 3663524), (70, 1831762), (140, 915881)]