19867175

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 25928400

約数和(自身を除く): 6061225

約数列:

[1, 5, 25, 29, 67, 145, 335, 409, 725, 1675, 1943, 2045, 9715, 10225, 11861, 27403, 48575, 59305, 137015, 296525, 685075, 794687, 3973435, 19867175]

約数ペア:

[(1, 19867175), (5, 3973435), (25, 794687), (29, 685075), (67, 296525), (145, 137015), (335, 59305), (409, 48575), (725, 27403), (1675, 11861), (1943, 10225), (2045, 9715)]