7916180

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{997}}^1$

素因数の和:1403

約数の個数: 24

約数和(自身を含む): 16682568

約数和(自身を除く): 8766388

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 997, 1588, 1985, 1994, 3970, 3988, 4985, 7940, 9970, 19940, 395809, 791618, 1583236, 1979045, 3958090, 7916180]

約数ペア:

[(1, 7916180), (2, 3958090), (4, 1979045), (5, 1583236), (10, 791618), (20, 395809), (397, 19940), (794, 9970), (997, 7940), (1588, 4985), (1985, 3988), (1994, 3970)]