80210781

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1021}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 140300160

約数和(自身を除く): 60089379

約数列:

[1, 3, 7, 9, 21, 29, 43, 63, 87, 129, 203, 261, 301, 387, 609, 903, 1021, 1247, 1827, 2709, 3063, 3741, 7147, 8729, 9189, 11223, 21441, 26187, 29609, 43903, 64323, 78561, 88827, 131709, 207263, 266481, 307321, 395127, 621789, 921963, 1273187, 1865367, 2765889, 3819561, 8912309, 11458683, 26736927, 80210781]

約数ペア:

[(1, 80210781), (3, 26736927), (7, 11458683), (9, 8912309), (21, 3819561), (29, 2765889), (43, 1865367), (63, 1273187), (87, 921963), (129, 621789), (203, 395127), (261, 307321), (301, 266481), (387, 207263), (609, 131709), (903, 88827), (1021, 78561), (1247, 64323), (1827, 43903), (2709, 29609), (3063, 26187), (3741, 21441), (7147, 11223), (8729, 9189)]