81663064

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 128

約数和(自身を含む): 199065600

約数和(自身を除く): 117402536

約数列:

[1, 2, 4, 7, 8, 14, 19, 23, 28, 38, 46, 47, 56, 71, 76, 92, 94, 133, 142, 152, 161, 184, 188, 266, 284, 322, 329, 376, 437, 497, 532, 568, 644, 658, 874, 893, 994, 1064, 1081, 1288, 1316, 1349, 1633, 1748, 1786, 1988, 2162, 2632, 2698, 3059, 3266, 3337, 3496, 3572, 3976, 4324, 5396, 6118, 6251, 6532, 6674, 7144, 7567, 8648, 9443, 10792, 11431, 12236, 12502, 13064, 13348, 15134, 18886, 20539, 22862, 23359, 24472, 25004, 26696, 30268, 31027, 37772, 41078, 45724, 46718, 50008, 60536, 62054, 63403, 75544, 76751, 82156, 91448, 93436, 124108, 126806, 143773, 153502, 164312, 186872, 217189, 248216, 253612, 287546, 307004, 434378, 443821, 507224, 537257, 575092, 614008, 868756, 887642, 1074514, 1150184, 1458269, 1737512, 1775284, 2149028, 2916538, 3550568, 4298056, 5833076, 10207883, 11666152, 20415766, 40831532, 81663064]

約数ペア:

[(1, 81663064), (2, 40831532), (4, 20415766), (7, 11666152), (8, 10207883), (14, 5833076), (19, 4298056), (23, 3550568), (28, 2916538), (38, 2149028), (46, 1775284), (47, 1737512), (56, 1458269), (71, 1150184), (76, 1074514), (92, 887642), (94, 868756), (133, 614008), (142, 575092), (152, 537257), (161, 507224), (184, 443821), (188, 434378), (266, 307004), (284, 287546), (322, 253612), (329, 248216), (376, 217189), (437, 186872), (497, 164312), (532, 153502), (568, 143773), (644, 126806), (658, 124108), (874, 93436), (893, 91448), (994, 82156), (1064, 76751), (1081, 75544), (1288, 63403), (1316, 62054), (1349, 60536), (1633, 50008), (1748, 46718), (1786, 45724), (1988, 41078), (2162, 37772), (2632, 31027), (2698, 30268), (3059, 26696), (3266, 25004), (3337, 24472), (3496, 23359), (3572, 22862), (3976, 20539), (4324, 18886), (5396, 15134), (6118, 13348), (6251, 13064), (6532, 12502), (6674, 12236), (7144, 11431), (7567, 10792), (8648, 9443)]