26138125

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{3217}}^1$

素因数の和:3250

約数の個数: 20

約数和(自身を含む): 35185612

約数和(自身を除く): 9047487

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 3217, 8125, 16085, 41821, 80425, 209105, 402125, 1045525, 2010625, 5227625, 26138125]

約数ペア:

[(1, 26138125), (5, 5227625), (13, 2010625), (25, 1045525), (65, 402125), (125, 209105), (325, 80425), (625, 41821), (1625, 16085), (3217, 8125)]