81192256

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:399

約数の個数: 56

約数和(自身を含む): 166790624

約数和(自身を除く): 85598368

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 163, 172, 181, 326, 344, 362, 652, 688, 724, 1304, 1376, 1448, 2608, 2752, 2896, 5216, 5792, 7009, 7783, 10432, 11584, 14018, 15566, 28036, 29503, 31132, 56072, 59006, 62264, 112144, 118012, 124528, 224288, 236024, 249056, 448576, 472048, 498112, 944096, 1268629, 1888192, 2537258, 5074516, 10149032, 20298064, 40596128, 81192256]

約数ペア:

[(1, 81192256), (2, 40596128), (4, 20298064), (8, 10149032), (16, 5074516), (32, 2537258), (43, 1888192), (64, 1268629), (86, 944096), (163, 498112), (172, 472048), (181, 448576), (326, 249056), (344, 236024), (362, 224288), (652, 124528), (688, 118012), (724, 112144), (1304, 62264), (1376, 59006), (1448, 56072), (2608, 31132), (2752, 29503), (2896, 28036), (5216, 15566), (5792, 14018), (7009, 11584), (7783, 10432)]