8215880

素因数分解:

$2^3\times 5^1\times {\mathrm{205397}}^1$

素因数の和:205408

約数の個数: 16

約数和(自身を含む): 18485820

約数和(自身を除く): 10269940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 205397, 410794, 821588, 1026985, 1643176, 2053970, 4107940, 8215880]

約数ペア:

[(1, 8215880), (2, 4107940), (4, 2053970), (5, 1643176), (8, 1026985), (10, 821588), (20, 410794), (40, 205397)]