20266850

素因数分解:

$2^1\times 5^2\times {\mathrm{397}}^1\times {\mathrm{1021}}^1$

素因数の和:1430

約数の個数: 24

約数和(自身を含む): 37828308

約数和(自身を除く): 17561458

約数列:

[1, 2, 5, 10, 25, 50, 397, 794, 1021, 1985, 2042, 3970, 5105, 9925, 10210, 19850, 25525, 51050, 405337, 810674, 2026685, 4053370, 10133425, 20266850]

約数ペア:

[(1, 20266850), (2, 10133425), (5, 4053370), (10, 2026685), (25, 810674), (50, 405337), (397, 51050), (794, 25525), (1021, 19850), (1985, 10210), (2042, 9925), (3970, 5105)]