8538460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 20805120

約数和(自身を除く): 12266660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 859, 994, 1420, 1718, 1988, 2485, 3436, 4295, 4970, 6013, 8590, 9940, 12026, 17180, 24052, 30065, 60130, 60989, 120260, 121978, 243956, 304945, 426923, 609890, 853846, 1219780, 1707692, 2134615, 4269230, 8538460]

約数ペア:

[(1, 8538460), (2, 4269230), (4, 2134615), (5, 1707692), (7, 1219780), (10, 853846), (14, 609890), (20, 426923), (28, 304945), (35, 243956), (70, 121978), (71, 120260), (140, 60989), (142, 60130), (284, 30065), (355, 24052), (497, 17180), (710, 12026), (859, 9940), (994, 8590), (1420, 6013), (1718, 4970), (1988, 4295), (2485, 3436)]