81281664

素因数分解:

$2^7\times 3^3\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:863

約数の個数: 128

約数和(自身を含む): 248472000

約数和(自身を除く): 167190336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 32, 36, 48, 54, 58, 64, 72, 87, 96, 108, 116, 128, 144, 174, 192, 216, 232, 261, 288, 348, 384, 432, 464, 522, 576, 696, 783, 811, 864, 928, 1044, 1152, 1392, 1566, 1622, 1728, 1856, 2088, 2433, 2784, 3132, 3244, 3456, 3712, 4176, 4866, 5568, 6264, 6488, 7299, 8352, 9732, 11136, 12528, 12976, 14598, 16704, 19464, 21897, 23519, 25056, 25952, 29196, 33408, 38928, 43794, 47038, 50112, 51904, 58392, 70557, 77856, 87588, 94076, 100224, 103808, 116784, 141114, 155712, 175176, 188152, 211671, 233568, 282228, 311424, 350352, 376304, 423342, 467136, 564456, 635013, 700704, 752608, 846684, 934272, 1128912, 1270026, 1401408, 1505216, 1693368, 2257824, 2540052, 2802816, 3010432, 3386736, 4515648, 5080104, 6773472, 9031296, 10160208, 13546944, 20320416, 27093888, 40640832, 81281664]

約数ペア:

[(1, 81281664), (2, 40640832), (3, 27093888), (4, 20320416), (6, 13546944), (8, 10160208), (9, 9031296), (12, 6773472), (16, 5080104), (18, 4515648), (24, 3386736), (27, 3010432), (29, 2802816), (32, 2540052), (36, 2257824), (48, 1693368), (54, 1505216), (58, 1401408), (64, 1270026), (72, 1128912), (87, 934272), (96, 846684), (108, 752608), (116, 700704), (128, 635013), (144, 564456), (174, 467136), (192, 423342), (216, 376304), (232, 350352), (261, 311424), (288, 282228), (348, 233568), (384, 211671), (432, 188152), (464, 175176), (522, 155712), (576, 141114), (696, 116784), (783, 103808), (811, 100224), (864, 94076), (928, 87588), (1044, 77856), (1152, 70557), (1392, 58392), (1566, 51904), (1622, 50112), (1728, 47038), (1856, 43794), (2088, 38928), (2433, 33408), (2784, 29196), (3132, 25952), (3244, 25056), (3456, 23519), (3712, 21897), (4176, 19464), (4866, 16704), (5568, 14598), (6264, 12976), (6488, 12528), (7299, 11136), (8352, 9732)]