81839996

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{5881}}^1$

素因数の和:5970

約数の個数: 36

約数和(自身を含む): 168978096

約数和(自身を除く): 87138100

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1988, 3479, 5881, 6958, 11762, 13916, 23524, 41167, 82334, 164668, 288169, 417551, 576338, 835102, 1152676, 1670204, 2922857, 5845714, 11691428, 20459999, 40919998, 81839996]

約数ペア:

[(1, 81839996), (2, 40919998), (4, 20459999), (7, 11691428), (14, 5845714), (28, 2922857), (49, 1670204), (71, 1152676), (98, 835102), (142, 576338), (196, 417551), (284, 288169), (497, 164668), (994, 82334), (1988, 41167), (3479, 23524), (5881, 13916), (6958, 11762)]