216871120

素因数分解:

$2^4\times 5^1\times {\mathrm{2710889}}^1$

素因数の和:2710902

約数の個数: 20

約数和(自身を含む): 504225540

約数和(自身を除く): 287354420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2710889, 5421778, 10843556, 13554445, 21687112, 27108890, 43374224, 54217780, 108435560, 216871120]

約数ペア:

[(1, 216871120), (2, 108435560), (4, 54217780), (5, 43374224), (8, 27108890), (10, 21687112), (16, 13554445), (20, 10843556), (40, 5421778), (80, 2710889)]