51254487560

素因数分解:

$2^3\times 5^1\times {\mathrm{10009}}^1\times {\mathrm{128021}}^1$

素因数の和:138041

約数の個数: 32

約数和(自身を含む): 115335019800

約数和(自身を除く): 64080532240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10009, 20018, 40036, 50045, 80072, 100090, 128021, 200180, 256042, 400360, 512084, 640105, 1024168, 1280210, 2560420, 5120840, 1281362189, 2562724378, 5125448756, 6406810945, 10250897512, 12813621890, 25627243780, 51254487560]

約数ペア:

[(1, 51254487560), (2, 25627243780), (4, 12813621890), (5, 10250897512), (8, 6406810945), (10, 5125448756), (20, 2562724378), (40, 1281362189), (10009, 5120840), (20018, 2560420), (40036, 1280210), (50045, 1024168), (80072, 640105), (100090, 512084), (128021, 400360), (200180, 256042)]