20771072

素因数分解:

$2^8\times 7^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 48369216

約数和(自身を除く): 27598144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 67, 112, 128, 134, 173, 224, 256, 268, 346, 448, 469, 536, 692, 896, 938, 1072, 1211, 1384, 1792, 1876, 2144, 2422, 2768, 3752, 4288, 4844, 5536, 7504, 8576, 9688, 11072, 11591, 15008, 17152, 19376, 22144, 23182, 30016, 38752, 44288, 46364, 60032, 77504, 81137, 92728, 120064, 155008, 162274, 185456, 310016, 324548, 370912, 649096, 741824, 1298192, 1483648, 2596384, 2967296, 5192768, 10385536, 20771072]

約数ペア:

[(1, 20771072), (2, 10385536), (4, 5192768), (7, 2967296), (8, 2596384), (14, 1483648), (16, 1298192), (28, 741824), (32, 649096), (56, 370912), (64, 324548), (67, 310016), (112, 185456), (128, 162274), (134, 155008), (173, 120064), (224, 92728), (256, 81137), (268, 77504), (346, 60032), (448, 46364), (469, 44288), (536, 38752), (692, 30016), (896, 23182), (938, 22144), (1072, 19376), (1211, 17152), (1384, 15008), (1792, 11591), (1876, 11072), (2144, 9688), (2422, 8576), (2768, 7504), (3752, 5536), (4288, 4844)]