28385625

素因数分解:

$3^1\times 5^4\times {\mathrm{15139}}^1$

素因数の和:15162

約数の個数: 20

約数和(自身を含む): 47297360

約数和(自身を除く): 18911735

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 15139, 45417, 75695, 227085, 378475, 1135425, 1892375, 5677125, 9461875, 28385625]

約数ペア:

[(1, 28385625), (3, 9461875), (5, 5677125), (15, 1892375), (25, 1135425), (75, 378475), (125, 227085), (375, 75695), (625, 45417), (1875, 15139)]