212645488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 473755392

約数和(自身を除く): 261109904

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 131, 176, 184, 253, 262, 368, 401, 506, 524, 802, 1012, 1048, 1441, 1604, 2024, 2096, 2882, 3013, 3208, 4048, 4411, 5764, 6026, 6416, 8822, 9223, 11528, 12052, 17644, 18446, 23056, 24104, 33143, 35288, 36892, 48208, 52531, 66286, 70576, 73784, 101453, 105062, 132572, 147568, 202906, 210124, 265144, 405812, 420248, 530288, 577841, 811624, 840496, 1155682, 1208213, 1623248, 2311364, 2416426, 4622728, 4832852, 9245456, 9665704, 13290343, 19331408, 26580686, 53161372, 106322744, 212645488]

約数ペア:

[(1, 212645488), (2, 106322744), (4, 53161372), (8, 26580686), (11, 19331408), (16, 13290343), (22, 9665704), (23, 9245456), (44, 4832852), (46, 4622728), (88, 2416426), (92, 2311364), (131, 1623248), (176, 1208213), (184, 1155682), (253, 840496), (262, 811624), (368, 577841), (401, 530288), (506, 420248), (524, 405812), (802, 265144), (1012, 210124), (1048, 202906), (1441, 147568), (1604, 132572), (2024, 105062), (2096, 101453), (2882, 73784), (3013, 70576), (3208, 66286), (4048, 52531), (4411, 48208), (5764, 36892), (6026, 35288), (6416, 33143), (8822, 24104), (9223, 23056), (11528, 18446), (12052, 17644)]