20800745

素因数分解:

$5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{1439}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 29548800

約数和(自身を除く): 8748055

約数列:

[1, 5, 7, 35, 49, 59, 245, 295, 413, 1439, 2065, 2891, 7195, 10073, 14455, 50365, 70511, 84901, 352555, 424505, 594307, 2971535, 4160149, 20800745]

約数ペア:

[(1, 20800745), (5, 4160149), (7, 2971535), (35, 594307), (49, 424505), (59, 352555), (245, 84901), (295, 70511), (413, 50365), (1439, 14455), (2065, 10073), (2891, 7195)]