81900488

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7589}}^1$

素因数の和:7685

約数の個数: 32

約数和(自身を含む): 163944000

約数和(自身を除く): 82043512

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 142, 152, 284, 568, 1349, 2698, 5396, 7589, 10792, 15178, 30356, 60712, 144191, 288382, 538819, 576764, 1077638, 1153528, 2155276, 4310552, 10237561, 20475122, 40950244, 81900488]

約数ペア:

[(1, 81900488), (2, 40950244), (4, 20475122), (8, 10237561), (19, 4310552), (38, 2155276), (71, 1153528), (76, 1077638), (142, 576764), (152, 538819), (284, 288382), (568, 144191), (1349, 60712), (2698, 30356), (5396, 15178), (7589, 10792)]