81497556

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:195

約数の個数: 192

約数和(自身を含む): 260198400

約数和(自身を除く): 178700844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 43, 46, 54, 63, 69, 84, 86, 92, 108, 109, 126, 129, 138, 161, 172, 189, 207, 218, 252, 258, 276, 301, 322, 327, 378, 387, 414, 436, 483, 516, 602, 621, 644, 654, 756, 763, 774, 828, 903, 966, 981, 989, 1161, 1204, 1242, 1308, 1449, 1526, 1548, 1806, 1932, 1962, 1978, 2289, 2322, 2484, 2507, 2709, 2898, 2943, 2967, 3052, 3612, 3924, 3956, 4347, 4578, 4644, 4687, 5014, 5418, 5796, 5886, 5934, 6867, 6923, 7521, 8127, 8694, 8901, 9156, 9374, 10028, 10836, 11772, 11868, 13734, 13846, 14061, 15042, 16254, 17388, 17549, 17802, 18748, 20601, 20769, 22563, 26703, 27468, 27692, 28122, 30084, 32508, 32809, 35098, 35604, 41202, 41538, 42183, 45126, 52647, 53406, 56244, 62307, 65618, 67689, 70196, 82404, 83076, 84366, 90252, 98427, 105294, 106812, 107801, 124614, 126549, 131236, 135378, 157941, 168732, 186921, 196854, 210588, 215602, 249228, 253098, 270756, 295281, 315882, 323403, 373842, 393708, 431204, 473823, 506196, 590562, 631764, 646806, 747684, 754607, 885843, 947646, 970209, 1181124, 1293612, 1509214, 1771686, 1895292, 1940418, 2263821, 2910627, 3018428, 3543372, 3880836, 4527642, 5821254, 6791463, 9055284, 11642508, 13582926, 20374389, 27165852, 40748778, 81497556]

約数ペア:

[(1, 81497556), (2, 40748778), (3, 27165852), (4, 20374389), (6, 13582926), (7, 11642508), (9, 9055284), (12, 6791463), (14, 5821254), (18, 4527642), (21, 3880836), (23, 3543372), (27, 3018428), (28, 2910627), (36, 2263821), (42, 1940418), (43, 1895292), (46, 1771686), (54, 1509214), (63, 1293612), (69, 1181124), (84, 970209), (86, 947646), (92, 885843), (108, 754607), (109, 747684), (126, 646806), (129, 631764), (138, 590562), (161, 506196), (172, 473823), (189, 431204), (207, 393708), (218, 373842), (252, 323403), (258, 315882), (276, 295281), (301, 270756), (322, 253098), (327, 249228), (378, 215602), (387, 210588), (414, 196854), (436, 186921), (483, 168732), (516, 157941), (602, 135378), (621, 131236), (644, 126549), (654, 124614), (756, 107801), (763, 106812), (774, 105294), (828, 98427), (903, 90252), (966, 84366), (981, 83076), (989, 82404), (1161, 70196), (1204, 67689), (1242, 65618), (1308, 62307), (1449, 56244), (1526, 53406), (1548, 52647), (1806, 45126), (1932, 42183), (1962, 41538), (1978, 41202), (2289, 35604), (2322, 35098), (2484, 32809), (2507, 32508), (2709, 30084), (2898, 28122), (2943, 27692), (2967, 27468), (3052, 26703), (3612, 22563), (3924, 20769), (3956, 20601), (4347, 18748), (4578, 17802), (4644, 17549), (4687, 17388), (5014, 16254), (5418, 15042), (5796, 14061), (5886, 13846), (5934, 13734), (6867, 11868), (6923, 11772), (7521, 10836), (8127, 10028), (8694, 9374), (8901, 9156)]