661387058560

素因数分解:

$2^7\times 5^1\times {\mathrm{4951}}^1\times {\mathrm{208729}}^1$

素因数の和:213699

約数の個数: 64

約数和(自身を含む): 1581455368800

約数和(自身を除く): 920068310240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 4951, 9902, 19804, 24755, 39608, 49510, 79216, 99020, 158432, 198040, 208729, 316864, 396080, 417458, 633728, 792160, 834916, 1043645, 1584320, 1669832, 2087290, 3168640, 3339664, 4174580, 6679328, 8349160, 13358656, 16698320, 26717312, 33396640, 66793280, 133586560, 1033417279, 2066834558, 4133669116, 5167086395, 8267338232, 10334172790, 16534676464, 20668345580, 33069352928, 41336691160, 66138705856, 82673382320, 132277411712, 165346764640, 330693529280, 661387058560]

約数ペア:

[(1, 661387058560), (2, 330693529280), (4, 165346764640), (5, 132277411712), (8, 82673382320), (10, 66138705856), (16, 41336691160), (20, 33069352928), (32, 20668345580), (40, 16534676464), (64, 10334172790), (80, 8267338232), (128, 5167086395), (160, 4133669116), (320, 2066834558), (640, 1033417279), (4951, 133586560), (9902, 66793280), (19804, 33396640), (24755, 26717312), (39608, 16698320), (49510, 13358656), (79216, 8349160), (99020, 6679328), (158432, 4174580), (198040, 3339664), (208729, 3168640), (316864, 2087290), (396080, 1669832), (417458, 1584320), (633728, 1043645), (792160, 834916)]