7995940

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{997}}^1$

素因数の和:1407

約数の個数: 24

約数和(自身を含む): 16850232

約数和(自身を除く): 8854292

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 997, 1604, 1994, 2005, 3988, 4010, 4985, 8020, 9970, 19940, 399797, 799594, 1599188, 1998985, 3997970, 7995940]

約数ペア:

[(1, 7995940), (2, 3997970), (4, 1998985), (5, 1599188), (10, 799594), (20, 399797), (401, 19940), (802, 9970), (997, 8020), (1604, 4985), (1994, 4010), (2005, 3988)]