20344547525

素因数分解:

$5^2\times {\mathrm{109}}^1\times {\mathrm{163}}^2\times {\mathrm{281}}^1$

素因数の和:726

約数の個数: 36

約数和(自身を含む): 25706987460

約数和(自身を除く): 5362439935

約数列:

[1, 5, 25, 109, 163, 281, 545, 815, 1405, 2725, 4075, 7025, 17767, 26569, 30629, 45803, 88835, 132845, 153145, 229015, 444175, 664225, 765725, 1145075, 2896021, 4992527, 7465889, 14480105, 24962635, 37329445, 72400525, 124813175, 186647225, 813781901, 4068909505, 20344547525]

約数ペア:

[(1, 20344547525), (5, 4068909505), (25, 813781901), (109, 186647225), (163, 124813175), (281, 72400525), (545, 37329445), (815, 24962635), (1405, 14480105), (2725, 7465889), (4075, 4992527), (7025, 2896021), (17767, 1145075), (26569, 765725), (30629, 664225), (45803, 444175), (88835, 229015), (132845, 153145)]