81880736

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^2\times {\mathrm{691}}^1$

素因数の和:754

約数の個数: 72

約数和(自身を含む): 192868704

約数和(自身を除く): 110987968

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 529, 644, 691, 736, 1058, 1288, 1382, 2116, 2576, 2764, 3703, 4232, 4837, 5152, 5528, 7406, 8464, 9674, 11056, 14812, 15893, 16928, 19348, 22112, 29624, 31786, 38696, 59248, 63572, 77392, 111251, 118496, 127144, 154784, 222502, 254288, 365539, 445004, 508576, 731078, 890008, 1462156, 1780016, 2558773, 2924312, 3560032, 5117546, 5848624, 10235092, 11697248, 20470184, 40940368, 81880736]

約数ペア:

[(1, 81880736), (2, 40940368), (4, 20470184), (7, 11697248), (8, 10235092), (14, 5848624), (16, 5117546), (23, 3560032), (28, 2924312), (32, 2558773), (46, 1780016), (56, 1462156), (92, 890008), (112, 731078), (161, 508576), (184, 445004), (224, 365539), (322, 254288), (368, 222502), (529, 154784), (644, 127144), (691, 118496), (736, 111251), (1058, 77392), (1288, 63572), (1382, 59248), (2116, 38696), (2576, 31786), (2764, 29624), (3703, 22112), (4232, 19348), (4837, 16928), (5152, 15893), (5528, 14812), (7406, 11056), (8464, 9674)]