686604496

素因数分解:

$2^4\times {\mathrm{661}}^1\times {\mathrm{64921}}^1$

素因数の和:65590

約数の個数: 20

約数和(自身を含む): 1332329284

約数和(自身を除く): 645724788

約数列:

[1, 2, 4, 8, 16, 661, 1322, 2644, 5288, 10576, 64921, 129842, 259684, 519368, 1038736, 42912781, 85825562, 171651124, 343302248, 686604496]

約数ペア:

[(1, 686604496), (2, 343302248), (4, 171651124), (8, 85825562), (16, 42912781), (661, 1038736), (1322, 519368), (2644, 259684), (5288, 129842), (10576, 64921)]