20262172

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 42964992

約数和(自身を除く): 22702820

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 73, 92, 146, 161, 292, 322, 431, 511, 644, 862, 1022, 1679, 1724, 2044, 3017, 3358, 6034, 6716, 9913, 11753, 12068, 19826, 23506, 31463, 39652, 47012, 62926, 69391, 125852, 138782, 220241, 277564, 440482, 723649, 880964, 1447298, 2894596, 5065543, 10131086, 20262172]

約数ペア:

[(1, 20262172), (2, 10131086), (4, 5065543), (7, 2894596), (14, 1447298), (23, 880964), (28, 723649), (46, 440482), (73, 277564), (92, 220241), (146, 138782), (161, 125852), (292, 69391), (322, 62926), (431, 47012), (511, 39652), (644, 31463), (862, 23506), (1022, 19826), (1679, 12068), (1724, 11753), (2044, 9913), (3017, 6716), (3358, 6034)]