81486976

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 171849600

約数和(自身を除く): 90362624

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 89, 92, 128, 178, 184, 311, 356, 368, 622, 712, 736, 1244, 1424, 1472, 2047, 2488, 2848, 2944, 4094, 4976, 5696, 7153, 8188, 9952, 11392, 14306, 16376, 19904, 27679, 28612, 32752, 39808, 55358, 57224, 65504, 110716, 114448, 131008, 221432, 228896, 262016, 442864, 457792, 636617, 885728, 915584, 1273234, 1771456, 2546468, 3542912, 5092936, 10185872, 20371744, 40743488, 81486976]

約数ペア:

[(1, 81486976), (2, 40743488), (4, 20371744), (8, 10185872), (16, 5092936), (23, 3542912), (32, 2546468), (46, 1771456), (64, 1273234), (89, 915584), (92, 885728), (128, 636617), (178, 457792), (184, 442864), (311, 262016), (356, 228896), (368, 221432), (622, 131008), (712, 114448), (736, 110716), (1244, 65504), (1424, 57224), (1472, 55358), (2047, 39808), (2488, 32752), (2848, 28612), (2944, 27679), (4094, 19904), (4976, 16376), (5696, 14306), (7153, 11392), (8188, 9952)]