638588376

素因数分解:

$2^3\times 3^2\times {\mathrm{23}}^1\times {\mathrm{385621}}^1$

素因数の和:385656

約数の個数: 48

約数和(自身を含む): 1804710960

約数和(自身を除く): 1166122584

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 23, 24, 36, 46, 69, 72, 92, 138, 184, 207, 276, 414, 552, 828, 1656, 385621, 771242, 1156863, 1542484, 2313726, 3084968, 3470589, 4627452, 6941178, 8869283, 9254904, 13882356, 17738566, 26607849, 27764712, 35477132, 53215698, 70954264, 79823547, 106431396, 159647094, 212862792, 319294188, 638588376]

約数ペア:

[(1, 638588376), (2, 319294188), (3, 212862792), (4, 159647094), (6, 106431396), (8, 79823547), (9, 70954264), (12, 53215698), (18, 35477132), (23, 27764712), (24, 26607849), (36, 17738566), (46, 13882356), (69, 9254904), (72, 8869283), (92, 6941178), (138, 4627452), (184, 3470589), (207, 3084968), (276, 2313726), (414, 1542484), (552, 1156863), (828, 771242), (1656, 385621)]