1287978726

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{81281}}^1$

素因数の和:81444

約数の個数: 32

約数和(自身を含む): 2731075200

約数和(自身を除く): 1443096474

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 139, 278, 417, 834, 2641, 5282, 7923, 15846, 81281, 162562, 243843, 487686, 1544339, 3088678, 4633017, 9266034, 11298059, 22596118, 33894177, 67788354, 214663121, 429326242, 643989363, 1287978726]

約数ペア:

[(1, 1287978726), (2, 643989363), (3, 429326242), (6, 214663121), (19, 67788354), (38, 33894177), (57, 22596118), (114, 11298059), (139, 9266034), (278, 4633017), (417, 3088678), (834, 1544339), (2641, 487686), (5282, 243843), (7923, 162562), (15846, 81281)]