81951254

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1361}}^1$

素因数の和:1421

約数の個数: 64

約数和(自身を含む): 169454592

約数和(自身を除く): 87503338

約数列:

[1, 2, 7, 11, 14, 17, 22, 23, 34, 46, 77, 119, 154, 161, 187, 238, 253, 322, 374, 391, 506, 782, 1309, 1361, 1771, 2618, 2722, 2737, 3542, 4301, 5474, 8602, 9527, 14971, 19054, 23137, 29942, 30107, 31303, 46274, 60214, 62606, 104797, 161959, 209594, 219121, 254507, 323918, 344333, 438242, 509014, 532151, 688666, 1064302, 1781549, 2410331, 3563098, 3725057, 4820662, 5853661, 7450114, 11707322, 40975627, 81951254]

約数ペア:

[(1, 81951254), (2, 40975627), (7, 11707322), (11, 7450114), (14, 5853661), (17, 4820662), (22, 3725057), (23, 3563098), (34, 2410331), (46, 1781549), (77, 1064302), (119, 688666), (154, 532151), (161, 509014), (187, 438242), (238, 344333), (253, 323918), (322, 254507), (374, 219121), (391, 209594), (506, 161959), (782, 104797), (1309, 62606), (1361, 60214), (1771, 46274), (2618, 31303), (2722, 30107), (2737, 29942), (3542, 23137), (4301, 19054), (5474, 14971), (8602, 9527)]