81489824

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:214

約数の個数: 96

約数和(自身を含む): 182891520

約数和(自身を除く): 101401696

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 71, 89, 104, 124, 142, 178, 208, 248, 284, 356, 403, 416, 496, 568, 712, 806, 923, 992, 1136, 1157, 1424, 1612, 1846, 2201, 2272, 2314, 2759, 2848, 3224, 3692, 4402, 4628, 5518, 6319, 6448, 7384, 8804, 9256, 11036, 12638, 12896, 14768, 17608, 18512, 22072, 25276, 28613, 29536, 35216, 35867, 37024, 44144, 50552, 57226, 70432, 71734, 82147, 88288, 101104, 114452, 143468, 164294, 195889, 202208, 228904, 286936, 328588, 391778, 457808, 573872, 657176, 783556, 915616, 1147744, 1314352, 1567112, 2546557, 2628704, 3134224, 5093114, 6268448, 10186228, 20372456, 40744912, 81489824]

約数ペア:

[(1, 81489824), (2, 40744912), (4, 20372456), (8, 10186228), (13, 6268448), (16, 5093114), (26, 3134224), (31, 2628704), (32, 2546557), (52, 1567112), (62, 1314352), (71, 1147744), (89, 915616), (104, 783556), (124, 657176), (142, 573872), (178, 457808), (208, 391778), (248, 328588), (284, 286936), (356, 228904), (403, 202208), (416, 195889), (496, 164294), (568, 143468), (712, 114452), (806, 101104), (923, 88288), (992, 82147), (1136, 71734), (1157, 70432), (1424, 57226), (1612, 50552), (1846, 44144), (2201, 37024), (2272, 35867), (2314, 35216), (2759, 29536), (2848, 28613), (3224, 25276), (3692, 22072), (4402, 18512), (4628, 17608), (5518, 14768), (6319, 12896), (6448, 12638), (7384, 11036), (8804, 9256)]