80001999

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 151658496

約数和(自身を除く): 71656497

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 101, 127, 189, 231, 297, 303, 381, 567, 693, 707, 889, 891, 909, 1111, 1143, 1397, 2079, 2121, 2667, 2727, 3333, 3429, 4191, 6237, 6363, 7777, 8001, 8181, 9779, 9999, 10287, 12573, 12827, 19089, 23331, 24003, 29337, 29997, 37719, 38481, 57267, 69993, 72009, 88011, 89789, 89991, 113157, 115443, 141097, 209979, 264033, 269367, 346329, 423291, 629937, 792099, 808101, 987679, 1038987, 1269873, 2424303, 2963037, 3809619, 7272909, 8889111, 11428857, 26667333, 80001999]

約数ペア:

[(1, 80001999), (3, 26667333), (7, 11428857), (9, 8889111), (11, 7272909), (21, 3809619), (27, 2963037), (33, 2424303), (63, 1269873), (77, 1038987), (81, 987679), (99, 808101), (101, 792099), (127, 629937), (189, 423291), (231, 346329), (297, 269367), (303, 264033), (381, 209979), (567, 141097), (693, 115443), (707, 113157), (889, 89991), (891, 89789), (909, 88011), (1111, 72009), (1143, 69993), (1397, 57267), (2079, 38481), (2121, 37719), (2667, 29997), (2727, 29337), (3333, 24003), (3429, 23331), (4191, 19089), (6237, 12827), (6363, 12573), (7777, 10287), (8001, 9999), (8181, 9779)]