8176780

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1051}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 17231760

約数和(自身を除く): 9054980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1051, 1556, 1945, 2102, 3890, 4204, 5255, 7780, 10510, 21020, 408839, 817678, 1635356, 2044195, 4088390, 8176780]

約数ペア:

[(1, 8176780), (2, 4088390), (4, 2044195), (5, 1635356), (10, 817678), (20, 408839), (389, 21020), (778, 10510), (1051, 7780), (1556, 5255), (1945, 4204), (2102, 3890)]