79944008

素因数分解:

$2^3\times {\mathrm{1999}}^1\times {\mathrm{4999}}^1$

素因数の和:7004

約数の個数: 16

約数和(自身を含む): 150000000

約数和(自身を除く): 70055992

約数列:

[1, 2, 4, 8, 1999, 3998, 4999, 7996, 9998, 15992, 19996, 39992, 9993001, 19986002, 39972004, 79944008]

約数ペア:

[(1, 79944008), (2, 39972004), (4, 19986002), (8, 9993001), (1999, 39992), (3998, 19996), (4999, 15992), (7996, 9998)]