81400956

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{463}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 248822784

約数和(自身を除く): 167421828

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 23, 26, 28, 39, 42, 46, 49, 52, 69, 78, 84, 91, 92, 98, 138, 147, 156, 161, 182, 196, 273, 276, 294, 299, 322, 364, 463, 483, 546, 588, 598, 637, 644, 897, 926, 966, 1092, 1127, 1196, 1274, 1389, 1794, 1852, 1911, 1932, 2093, 2254, 2548, 2778, 3241, 3381, 3588, 3822, 4186, 4508, 5556, 6019, 6279, 6482, 6762, 7644, 8372, 9723, 10649, 12038, 12558, 12964, 13524, 14651, 18057, 19446, 21298, 22687, 24076, 25116, 29302, 31947, 36114, 38892, 42133, 42596, 43953, 45374, 58604, 63894, 68061, 72228, 74543, 84266, 87906, 90748, 126399, 127788, 136122, 138437, 149086, 168532, 175812, 223629, 252798, 272244, 276874, 294931, 298172, 415311, 447258, 505596, 521801, 553748, 589862, 830622, 884793, 894516, 969059, 1043602, 1179724, 1565403, 1661244, 1769586, 1938118, 2087204, 2907177, 3130806, 3539172, 3876236, 5814354, 6261612, 6783413, 11628708, 13566826, 20350239, 27133652, 40700478, 81400956]

約数ペア:

[(1, 81400956), (2, 40700478), (3, 27133652), (4, 20350239), (6, 13566826), (7, 11628708), (12, 6783413), (13, 6261612), (14, 5814354), (21, 3876236), (23, 3539172), (26, 3130806), (28, 2907177), (39, 2087204), (42, 1938118), (46, 1769586), (49, 1661244), (52, 1565403), (69, 1179724), (78, 1043602), (84, 969059), (91, 894516), (92, 884793), (98, 830622), (138, 589862), (147, 553748), (156, 521801), (161, 505596), (182, 447258), (196, 415311), (273, 298172), (276, 294931), (294, 276874), (299, 272244), (322, 252798), (364, 223629), (463, 175812), (483, 168532), (546, 149086), (588, 138437), (598, 136122), (637, 127788), (644, 126399), (897, 90748), (926, 87906), (966, 84266), (1092, 74543), (1127, 72228), (1196, 68061), (1274, 63894), (1389, 58604), (1794, 45374), (1852, 43953), (1911, 42596), (1932, 42133), (2093, 38892), (2254, 36114), (2548, 31947), (2778, 29302), (3241, 25116), (3381, 24076), (3588, 22687), (3822, 21298), (4186, 19446), (4508, 18057), (5556, 14651), (6019, 13524), (6279, 12964), (6482, 12558), (6762, 12038), (7644, 10649), (8372, 9723)]