20031025

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3947}}^1$

素因数の和:3993

約数の個数: 24

約数和(自身を含む): 29373120

約数和(自身を除く): 9342095

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 3947, 5075, 19735, 27629, 98675, 114463, 138145, 572315, 690725, 801241, 2861575, 4006205, 20031025]

約数ペア:

[(1, 20031025), (5, 4006205), (7, 2861575), (25, 801241), (29, 690725), (35, 572315), (145, 138145), (175, 114463), (203, 98675), (725, 27629), (1015, 19735), (3947, 5075)]