20105240

素因数分解:

$2^3\times 5^1\times {\mathrm{502631}}^1$

素因数の和:502642

約数の個数: 16

約数和(自身を含む): 45236880

約数和(自身を除く): 25131640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502631, 1005262, 2010524, 2513155, 4021048, 5026310, 10052620, 20105240]

約数ペア:

[(1, 20105240), (2, 10052620), (4, 5026310), (5, 4021048), (8, 2513155), (10, 2010524), (20, 1005262), (40, 502631)]