18104375

素因数分解:

$5^4\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:452

約数の個数: 20

約数和(自身を含む): 22961400

約数和(自身を除く): 4857025

約数列:

[1, 5, 25, 83, 125, 349, 415, 625, 1745, 2075, 8725, 10375, 28967, 43625, 51875, 144835, 218125, 724175, 3620875, 18104375]

約数ペア:

[(1, 18104375), (5, 3620875), (25, 724175), (83, 218125), (125, 144835), (349, 51875), (415, 43625), (625, 28967), (1745, 10375), (2075, 8725)]