81505494

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{839}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 208051200

約数和(自身を除く): 126545706

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 257, 378, 514, 771, 839, 1542, 1678, 1799, 2313, 2517, 3598, 4626, 5034, 5397, 5873, 6939, 7551, 10794, 11746, 13878, 15102, 16191, 17619, 22653, 32382, 35238, 45306, 48573, 52857, 97146, 105714, 158571, 215623, 317142, 431246, 646869, 1293738, 1509361, 1940607, 3018722, 3881214, 4528083, 5821821, 9056166, 11643642, 13584249, 27168498, 40752747, 81505494]

約数ペア:

[(1, 81505494), (2, 40752747), (3, 27168498), (6, 13584249), (7, 11643642), (9, 9056166), (14, 5821821), (18, 4528083), (21, 3881214), (27, 3018722), (42, 1940607), (54, 1509361), (63, 1293738), (126, 646869), (189, 431246), (257, 317142), (378, 215623), (514, 158571), (771, 105714), (839, 97146), (1542, 52857), (1678, 48573), (1799, 45306), (2313, 35238), (2517, 32382), (3598, 22653), (4626, 17619), (5034, 16191), (5397, 15102), (5873, 13878), (6939, 11746), (7551, 10794)]