81666144

素因数分解:

$2^5\times 3^4\times 7^2\times {\mathrm{643}}^1$

素因数の和:679

約数の個数: 180

約数和(自身を含む): 279825084

約数和(自身を除く): 198158940

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 96, 98, 108, 112, 126, 144, 147, 162, 168, 189, 196, 216, 224, 252, 288, 294, 324, 336, 378, 392, 432, 441, 504, 567, 588, 643, 648, 672, 756, 784, 864, 882, 1008, 1134, 1176, 1286, 1296, 1323, 1512, 1568, 1764, 1929, 2016, 2268, 2352, 2572, 2592, 2646, 3024, 3528, 3858, 3969, 4501, 4536, 4704, 5144, 5292, 5787, 6048, 7056, 7716, 7938, 9002, 9072, 10288, 10584, 11574, 13503, 14112, 15432, 15876, 17361, 18004, 18144, 20576, 21168, 23148, 27006, 30864, 31507, 31752, 34722, 36008, 40509, 42336, 46296, 52083, 54012, 61728, 63014, 63504, 69444, 72016, 81018, 92592, 94521, 104166, 108024, 121527, 126028, 127008, 138888, 144032, 162036, 185184, 189042, 208332, 216048, 243054, 252056, 277776, 283563, 324072, 364581, 378084, 416664, 432096, 486108, 504112, 555552, 567126, 648144, 729162, 756168, 833328, 850689, 972216, 1008224, 1134252, 1296288, 1458324, 1512336, 1666656, 1701378, 1944432, 2268504, 2552067, 2916648, 3024672, 3402756, 3888864, 4537008, 5104134, 5833296, 6805512, 9074016, 10208268, 11666592, 13611024, 20416536, 27222048, 40833072, 81666144]

約数ペア:

[(1, 81666144), (2, 40833072), (3, 27222048), (4, 20416536), (6, 13611024), (7, 11666592), (8, 10208268), (9, 9074016), (12, 6805512), (14, 5833296), (16, 5104134), (18, 4537008), (21, 3888864), (24, 3402756), (27, 3024672), (28, 2916648), (32, 2552067), (36, 2268504), (42, 1944432), (48, 1701378), (49, 1666656), (54, 1512336), (56, 1458324), (63, 1296288), (72, 1134252), (81, 1008224), (84, 972216), (96, 850689), (98, 833328), (108, 756168), (112, 729162), (126, 648144), (144, 567126), (147, 555552), (162, 504112), (168, 486108), (189, 432096), (196, 416664), (216, 378084), (224, 364581), (252, 324072), (288, 283563), (294, 277776), (324, 252056), (336, 243054), (378, 216048), (392, 208332), (432, 189042), (441, 185184), (504, 162036), (567, 144032), (588, 138888), (643, 127008), (648, 126028), (672, 121527), (756, 108024), (784, 104166), (864, 94521), (882, 92592), (1008, 81018), (1134, 72016), (1176, 69444), (1286, 63504), (1296, 63014), (1323, 61728), (1512, 54012), (1568, 52083), (1764, 46296), (1929, 42336), (2016, 40509), (2268, 36008), (2352, 34722), (2572, 31752), (2592, 31507), (2646, 30864), (3024, 27006), (3528, 23148), (3858, 21168), (3969, 20576), (4501, 18144), (4536, 18004), (4704, 17361), (5144, 15876), (5292, 15432), (5787, 14112), (6048, 13503), (7056, 11574), (7716, 10584), (7938, 10288), (9002, 9072)]