81947164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 160682368

約数和(自身を除く): 78735204

約数列:

[1, 2, 4, 13, 26, 43, 52, 67, 86, 134, 172, 268, 547, 559, 871, 1094, 1118, 1742, 2188, 2236, 2881, 3484, 5762, 7111, 11524, 14222, 23521, 28444, 36649, 37453, 47042, 73298, 74906, 94084, 146596, 149812, 305773, 476437, 611546, 952874, 1223092, 1575907, 1905748, 3151814, 6303628, 20486791, 40973582, 81947164]

約数ペア:

[(1, 81947164), (2, 40973582), (4, 20486791), (13, 6303628), (26, 3151814), (43, 1905748), (52, 1575907), (67, 1223092), (86, 952874), (134, 611546), (172, 476437), (268, 305773), (547, 149812), (559, 146596), (871, 94084), (1094, 74906), (1118, 73298), (1742, 47042), (2188, 37453), (2236, 36649), (2881, 28444), (3484, 23521), (5762, 14222), (7111, 11524)]