639394764

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{26209}}^1$

素因数の和:26342

約数の個数: 48

約数和(自身を含む): 1585180800

約数和(自身を除く): 945786036

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 107, 114, 214, 228, 321, 428, 642, 1284, 2033, 4066, 6099, 8132, 12198, 24396, 26209, 52418, 78627, 104836, 157254, 314508, 497971, 995942, 1493913, 1991884, 2804363, 2987826, 5608726, 5975652, 8413089, 11217452, 16826178, 33652356, 53282897, 106565794, 159848691, 213131588, 319697382, 639394764]

約数ペア:

[(1, 639394764), (2, 319697382), (3, 213131588), (4, 159848691), (6, 106565794), (12, 53282897), (19, 33652356), (38, 16826178), (57, 11217452), (76, 8413089), (107, 5975652), (114, 5608726), (214, 2987826), (228, 2804363), (321, 1991884), (428, 1493913), (642, 995942), (1284, 497971), (2033, 314508), (4066, 157254), (6099, 104836), (8132, 78627), (12198, 52418), (24396, 26209)]