81019764

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:419

約数の個数: 120

約数和(自身を含む): 244749120

約数和(自身を除く): 163729356

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 139, 162, 189, 252, 257, 278, 324, 378, 417, 514, 556, 567, 756, 771, 834, 973, 1028, 1134, 1251, 1542, 1668, 1799, 1946, 2268, 2313, 2502, 2919, 3084, 3598, 3753, 3892, 4626, 5004, 5397, 5838, 6939, 7196, 7506, 8757, 9252, 10794, 11259, 11676, 13878, 15012, 16191, 17514, 20817, 21588, 22518, 26271, 27756, 32382, 35028, 35723, 41634, 45036, 48573, 52542, 64764, 71446, 78813, 83268, 97146, 105084, 107169, 142892, 145719, 157626, 194292, 214338, 250061, 291438, 315252, 321507, 428676, 500122, 582876, 643014, 750183, 964521, 1000244, 1286028, 1500366, 1929042, 2250549, 2893563, 3000732, 3858084, 4501098, 5787126, 6751647, 9002196, 11574252, 13503294, 20254941, 27006588, 40509882, 81019764]

約数ペア:

[(1, 81019764), (2, 40509882), (3, 27006588), (4, 20254941), (6, 13503294), (7, 11574252), (9, 9002196), (12, 6751647), (14, 5787126), (18, 4501098), (21, 3858084), (27, 3000732), (28, 2893563), (36, 2250549), (42, 1929042), (54, 1500366), (63, 1286028), (81, 1000244), (84, 964521), (108, 750183), (126, 643014), (139, 582876), (162, 500122), (189, 428676), (252, 321507), (257, 315252), (278, 291438), (324, 250061), (378, 214338), (417, 194292), (514, 157626), (556, 145719), (567, 142892), (756, 107169), (771, 105084), (834, 97146), (973, 83268), (1028, 78813), (1134, 71446), (1251, 64764), (1542, 52542), (1668, 48573), (1799, 45036), (1946, 41634), (2268, 35723), (2313, 35028), (2502, 32382), (2919, 27756), (3084, 26271), (3598, 22518), (3753, 21588), (3892, 20817), (4626, 17514), (5004, 16191), (5397, 15012), (5838, 13878), (6939, 11676), (7196, 11259), (7506, 10794), (8757, 9252)]