18877075

素因数分解:

$5^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{401}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 26917920

約数和(自身を除く): 8040845

約数列:

[1, 5, 7, 25, 35, 175, 269, 401, 1345, 1883, 2005, 2807, 6725, 9415, 10025, 14035, 47075, 70175, 107869, 539345, 755083, 2696725, 3775415, 18877075]

約数ペア:

[(1, 18877075), (5, 3775415), (7, 2696725), (25, 755083), (35, 539345), (175, 107869), (269, 70175), (401, 47075), (1345, 14035), (1883, 10025), (2005, 9415), (2807, 6725)]