81011656

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:410

約数の個数: 64

約数和(自身を含む): 172339200

約数和(自身を除く): 91327544

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 79, 86, 88, 158, 172, 271, 316, 344, 473, 542, 632, 869, 946, 1084, 1738, 1892, 2168, 2981, 3397, 3476, 3784, 5962, 6794, 6952, 11653, 11924, 13588, 21409, 23306, 23848, 27176, 37367, 42818, 46612, 74734, 85636, 93224, 128183, 149468, 171272, 235499, 256366, 298936, 470998, 512732, 920587, 941996, 1025464, 1841174, 1883992, 3682348, 7364696, 10126457, 20252914, 40505828, 81011656]

約数ペア:

[(1, 81011656), (2, 40505828), (4, 20252914), (8, 10126457), (11, 7364696), (22, 3682348), (43, 1883992), (44, 1841174), (79, 1025464), (86, 941996), (88, 920587), (158, 512732), (172, 470998), (271, 298936), (316, 256366), (344, 235499), (473, 171272), (542, 149468), (632, 128183), (869, 93224), (946, 85636), (1084, 74734), (1738, 46612), (1892, 42818), (2168, 37367), (2981, 27176), (3397, 23848), (3476, 23306), (3784, 21409), (5962, 13588), (6794, 11924), (6952, 11653)]