648739112

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{51949}}^1$

素因数の和:52185

約数の個数: 32

約数和(自身を含む): 1396416000

約数和(自身を除く): 747676888

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1561, 1784, 3122, 6244, 12488, 51949, 103898, 207796, 363643, 415592, 727286, 1454572, 2909144, 11584627, 23169254, 46338508, 81092389, 92677016, 162184778, 324369556, 648739112]

約数ペア:

[(1, 648739112), (2, 324369556), (4, 162184778), (7, 92677016), (8, 81092389), (14, 46338508), (28, 23169254), (56, 11584627), (223, 2909144), (446, 1454572), (892, 727286), (1561, 415592), (1784, 363643), (3122, 207796), (6244, 103898), (12488, 51949)]