21777125

素因数分解:

$5^3\times {\mathrm{83}}^1\times {\mathrm{2099}}^1$

素因数の和:2197

約数の個数: 16

約数和(自身を含む): 27518400

約数和(自身を除く): 5741275

約数列:

[1, 5, 25, 83, 125, 415, 2075, 2099, 10375, 10495, 52475, 174217, 262375, 871085, 4355425, 21777125]

約数ペア:

[(1, 21777125), (5, 4355425), (25, 871085), (83, 262375), (125, 174217), (415, 52475), (2075, 10495), (2099, 10375)]