20506225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1877}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 27944640

約数和(自身を除く): 7438415

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1877, 2185, 9385, 10925, 35663, 43171, 46925, 178315, 215855, 820249, 891575, 1079275, 4101245, 20506225]

約数ペア:

[(1, 20506225), (5, 4101245), (19, 1079275), (23, 891575), (25, 820249), (95, 215855), (115, 178315), (437, 46925), (475, 43171), (575, 35663), (1877, 10925), (2185, 9385)]