20505272

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{42019}}^1$

素因数の和:42086

約数の個数: 16

約数和(自身を含む): 39078600

約数和(自身を除く): 18573328

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 42019, 84038, 168076, 336152, 2563159, 5126318, 10252636, 20505272]

約数ペア:

[(1, 20505272), (2, 10252636), (4, 5126318), (8, 2563159), (61, 336152), (122, 168076), (244, 84038), (488, 42019)]