20100321388

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1\times {\mathrm{44087}}^1$

素因数の和:44974

約数の個数: 48

約数和(自身を含む): 42366804480

約数和(自身を除く): 22266483092

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 857, 1714, 3428, 5999, 11998, 16283, 23996, 32566, 44087, 65132, 88174, 113981, 176348, 227962, 308609, 455924, 617218, 837653, 1234436, 1675306, 3350612, 5863571, 11727142, 23454284, 37782559, 75565118, 151130236, 264477913, 528955826, 717868621, 1057911652, 1435737242, 2871474484, 5025080347, 10050160694, 20100321388]

約数ペア:

[(1, 20100321388), (2, 10050160694), (4, 5025080347), (7, 2871474484), (14, 1435737242), (19, 1057911652), (28, 717868621), (38, 528955826), (76, 264477913), (133, 151130236), (266, 75565118), (532, 37782559), (857, 23454284), (1714, 11727142), (3428, 5863571), (5999, 3350612), (11998, 1675306), (16283, 1234436), (23996, 837653), (32566, 617218), (44087, 455924), (65132, 308609), (88174, 227962), (113981, 176348)]