20255240

素因数分解:

$2^3\times 5^1\times {\mathrm{506381}}^1$

素因数の和:506392

約数の個数: 16

約数和(自身を含む): 45574380

約数和(自身を除く): 25319140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 506381, 1012762, 2025524, 2531905, 4051048, 5063810, 10127620, 20255240]

約数ペア:

[(1, 20255240), (2, 10127620), (4, 5063810), (5, 4051048), (8, 2531905), (10, 2025524), (20, 1012762), (40, 506381)]