81996656

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 191654400

約数和(自身を除く): 109657744

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 139, 161, 184, 229, 278, 322, 368, 458, 556, 644, 916, 973, 1112, 1288, 1603, 1832, 1946, 2224, 2576, 3197, 3206, 3664, 3892, 5267, 6394, 6412, 7784, 10534, 12788, 12824, 15568, 21068, 22379, 25576, 25648, 31831, 36869, 42136, 44758, 51152, 63662, 73738, 84272, 89516, 127324, 147476, 179032, 222817, 254648, 294952, 358064, 445634, 509296, 589904, 732113, 891268, 1464226, 1782536, 2928452, 3565072, 5124791, 5856904, 10249582, 11713808, 20499164, 40998328, 81996656]

約数ペア:

[(1, 81996656), (2, 40998328), (4, 20499164), (7, 11713808), (8, 10249582), (14, 5856904), (16, 5124791), (23, 3565072), (28, 2928452), (46, 1782536), (56, 1464226), (92, 891268), (112, 732113), (139, 589904), (161, 509296), (184, 445634), (229, 358064), (278, 294952), (322, 254648), (368, 222817), (458, 179032), (556, 147476), (644, 127324), (916, 89516), (973, 84272), (1112, 73738), (1288, 63662), (1603, 51152), (1832, 44758), (1946, 42136), (2224, 36869), (2576, 31831), (3197, 25648), (3206, 25576), (3664, 22379), (3892, 21068), (5267, 15568), (6394, 12824), (6412, 12788), (7784, 10534)]