71512756

素因数分解:

$2^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1181

約数の個数: 48

約数和(自身を含む): 149184000

約数和(自身を除く): 77671244

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 343, 658, 686, 1109, 1316, 1372, 2218, 2303, 4436, 4606, 7763, 9212, 15526, 16121, 31052, 32242, 52123, 54341, 64484, 104246, 108682, 208492, 217364, 364861, 380387, 729722, 760774, 1459444, 1521548, 2554027, 5108054, 10216108, 17878189, 35756378, 71512756]

約数ペア:

[(1, 71512756), (2, 35756378), (4, 17878189), (7, 10216108), (14, 5108054), (28, 2554027), (47, 1521548), (49, 1459444), (94, 760774), (98, 729722), (188, 380387), (196, 364861), (329, 217364), (343, 208492), (658, 108682), (686, 104246), (1109, 64484), (1316, 54341), (1372, 52123), (2218, 32242), (2303, 31052), (4436, 16121), (4606, 15526), (7763, 9212)]