80498288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20369}}^1$

素因数の和:20409

約数の個数: 40

約数和(自身を含む): 176811600

約数和(自身を除く): 96313312

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 20369, 40738, 81476, 162952, 264797, 325904, 387011, 529594, 774022, 1059188, 1548044, 2118376, 3096088, 4236752, 5031143, 6192176, 10062286, 20124572, 40249144, 80498288]

約数ペア:

[(1, 80498288), (2, 40249144), (4, 20124572), (8, 10062286), (13, 6192176), (16, 5031143), (19, 4236752), (26, 3096088), (38, 2118376), (52, 1548044), (76, 1059188), (104, 774022), (152, 529594), (208, 387011), (247, 325904), (304, 264797), (494, 162952), (988, 81476), (1976, 40738), (3952, 20369)]