123340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{881}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 296352

約数和(自身を除く): 173012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 881, 1762, 3524, 4405, 6167, 8810, 12334, 17620, 24668, 30835, 61670, 123340]

約数ペア:

[(1, 123340), (2, 61670), (4, 30835), (5, 24668), (7, 17620), (10, 12334), (14, 8810), (20, 6167), (28, 4405), (35, 3524), (70, 1762), (140, 881)]