81253144

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{823}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 182730240

約数和(自身を除く): 101477096

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 43, 56, 82, 86, 164, 172, 287, 301, 328, 344, 574, 602, 823, 1148, 1204, 1646, 1763, 2296, 2408, 3292, 3526, 5761, 6584, 7052, 11522, 12341, 14104, 23044, 24682, 33743, 35389, 46088, 49364, 67486, 70778, 98728, 134972, 141556, 236201, 247723, 269944, 283112, 472402, 495446, 944804, 990892, 1450949, 1889608, 1981784, 2901898, 5803796, 10156643, 11607592, 20313286, 40626572, 81253144]

約数ペア:

[(1, 81253144), (2, 40626572), (4, 20313286), (7, 11607592), (8, 10156643), (14, 5803796), (28, 2901898), (41, 1981784), (43, 1889608), (56, 1450949), (82, 990892), (86, 944804), (164, 495446), (172, 472402), (287, 283112), (301, 269944), (328, 247723), (344, 236201), (574, 141556), (602, 134972), (823, 98728), (1148, 70778), (1204, 67486), (1646, 49364), (1763, 46088), (2296, 35389), (2408, 33743), (3292, 24682), (3526, 23044), (5761, 14104), (6584, 12341), (7052, 11522)]