19936225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{47}}^2$

素因数の和:142

約数の個数: 27

約数和(自身を含む): 26657427

約数和(自身を除く): 6721202

約数列:

[1, 5, 19, 25, 47, 95, 235, 361, 475, 893, 1175, 1805, 2209, 4465, 9025, 11045, 16967, 22325, 41971, 55225, 84835, 209855, 424175, 797449, 1049275, 3987245, 19936225]

約数ペア:

[(1, 19936225), (5, 3987245), (19, 1049275), (25, 797449), (47, 424175), (95, 209855), (235, 84835), (361, 55225), (475, 41971), (893, 22325), (1175, 16967), (1805, 11045), (2209, 9025)]