40003280

素因数分解:

$2^4\times 5^1\times {\mathrm{500041}}^1$

素因数の和:500054

約数の個数: 20

約数和(自身を含む): 93007812

約数和(自身を除く): 53004532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500041, 1000082, 2000164, 2500205, 4000328, 5000410, 8000656, 10000820, 20001640, 40003280]

約数ペア:

[(1, 40003280), (2, 20001640), (4, 10000820), (5, 8000656), (8, 5000410), (10, 4000328), (16, 2500205), (20, 2000164), (40, 1000082), (80, 500041)]