20589125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{9689}}^1$

素因数の和:9721

約数の個数: 16

約数和(自身を含む): 27209520

約数和(自身を除く): 6620395

約数列:

[1, 5, 17, 25, 85, 125, 425, 2125, 9689, 48445, 164713, 242225, 823565, 1211125, 4117825, 20589125]

約数ペア:

[(1, 20589125), (5, 4117825), (17, 1211125), (25, 823565), (85, 242225), (125, 164713), (425, 48445), (2125, 9689)]