81513168

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{587}}^1$

素因数の和:872

約数の個数: 80

約数和(自身を含む): 230985216

約数和(自身を除く): 149472048

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 263, 264, 526, 528, 587, 789, 1052, 1174, 1578, 1761, 2104, 2348, 2893, 3156, 3522, 4208, 4696, 5786, 6312, 6457, 7044, 8679, 9392, 11572, 12624, 12914, 14088, 17358, 19371, 23144, 25828, 28176, 34716, 38742, 46288, 51656, 69432, 77484, 103312, 138864, 154381, 154968, 308762, 309936, 463143, 617524, 926286, 1235048, 1698191, 1852572, 2470096, 3396382, 3705144, 5094573, 6792764, 7410288, 10189146, 13585528, 20378292, 27171056, 40756584, 81513168]

約数ペア:

[(1, 81513168), (2, 40756584), (3, 27171056), (4, 20378292), (6, 13585528), (8, 10189146), (11, 7410288), (12, 6792764), (16, 5094573), (22, 3705144), (24, 3396382), (33, 2470096), (44, 1852572), (48, 1698191), (66, 1235048), (88, 926286), (132, 617524), (176, 463143), (263, 309936), (264, 308762), (526, 154968), (528, 154381), (587, 138864), (789, 103312), (1052, 77484), (1174, 69432), (1578, 51656), (1761, 46288), (2104, 38742), (2348, 34716), (2893, 28176), (3156, 25828), (3522, 23144), (4208, 19371), (4696, 17358), (5786, 14088), (6312, 12914), (6457, 12624), (7044, 11572), (8679, 9392)]