81320095

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1255

約数の個数: 32

約数和(自身を含む): 111386880

約数和(自身を除く): 30066785

約数列:

[1, 5, 17, 19, 43, 85, 95, 215, 323, 731, 817, 1171, 1615, 3655, 4085, 5855, 13889, 19907, 22249, 50353, 69445, 99535, 111245, 251765, 378233, 856001, 956707, 1891165, 4280005, 4783535, 16264019, 81320095]

約数ペア:

[(1, 81320095), (5, 16264019), (17, 4783535), (19, 4280005), (43, 1891165), (85, 956707), (95, 856001), (215, 378233), (323, 251765), (731, 111245), (817, 99535), (1171, 69445), (1615, 50353), (3655, 22249), (4085, 19907), (5855, 13889)]