20197820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15073}}^1$

素因数の和:15149

約数の個数: 24

約数和(自身を含む): 43051344

約数和(自身を除く): 22853524

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15073, 30146, 60292, 75365, 150730, 301460, 1009891, 2019782, 4039564, 5049455, 10098910, 20197820]

約数ペア:

[(1, 20197820), (2, 10098910), (4, 5049455), (5, 4039564), (10, 2019782), (20, 1009891), (67, 301460), (134, 150730), (268, 75365), (335, 60292), (670, 30146), (1340, 15073)]