81480915

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2477}}^1$

素因数の和:2548

約数の個数: 48

約数和(自身を含む): 153080928

約数和(自身を除く): 71600013

約数列:

[1, 3, 5, 9, 15, 17, 43, 45, 51, 85, 129, 153, 215, 255, 387, 645, 731, 765, 1935, 2193, 2477, 3655, 6579, 7431, 10965, 12385, 22293, 32895, 37155, 42109, 106511, 111465, 126327, 210545, 319533, 378981, 532555, 631635, 958599, 1597665, 1810687, 1894905, 4792995, 5432061, 9053435, 16296183, 27160305, 81480915]

約数ペア:

[(1, 81480915), (3, 27160305), (5, 16296183), (9, 9053435), (15, 5432061), (17, 4792995), (43, 1894905), (45, 1810687), (51, 1597665), (85, 958599), (129, 631635), (153, 532555), (215, 378981), (255, 319533), (387, 210545), (645, 126327), (731, 111465), (765, 106511), (1935, 42109), (2193, 37155), (2477, 32895), (3655, 22293), (6579, 12385), (7431, 10965)]