1878656521

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 2364888960

約数和(自身を除く): 486232439

約数列:

[1, 7, 19, 49, 71, 97, 133, 293, 497, 679, 931, 1349, 1843, 2051, 3479, 4753, 5567, 6887, 9443, 12901, 14357, 20803, 28421, 38969, 48209, 66101, 90307, 130853, 145621, 198947, 272783, 337463, 395257, 539999, 915971, 1019347, 1392629, 2017891, 2766799, 3779993, 6411797, 14125237, 19367593, 26459951, 38339929, 98876659, 268379503, 1878656521]

約数ペア:

[(1, 1878656521), (7, 268379503), (19, 98876659), (49, 38339929), (71, 26459951), (97, 19367593), (133, 14125237), (293, 6411797), (497, 3779993), (679, 2766799), (931, 2017891), (1349, 1392629), (1843, 1019347), (2051, 915971), (3479, 539999), (4753, 395257), (5567, 337463), (6887, 272783), (9443, 198947), (12901, 145621), (14357, 130853), (20803, 90307), (28421, 66101), (38969, 48209)]