20523776

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 50478624

約数和(自身を除く): 29954848

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 881, 896, 1456, 1664, 1762, 1792, 2912, 3328, 3524, 5824, 6167, 7048, 11453, 11648, 12334, 14096, 22906, 23296, 24668, 28192, 45812, 49336, 56384, 80171, 91624, 98672, 112768, 160342, 183248, 197344, 225536, 320684, 366496, 394688, 641368, 732992, 789376, 1282736, 1465984, 1578752, 2565472, 2931968, 5130944, 10261888, 20523776]

約数ペア:

[(1, 20523776), (2, 10261888), (4, 5130944), (7, 2931968), (8, 2565472), (13, 1578752), (14, 1465984), (16, 1282736), (26, 789376), (28, 732992), (32, 641368), (52, 394688), (56, 366496), (64, 320684), (91, 225536), (104, 197344), (112, 183248), (128, 160342), (182, 112768), (208, 98672), (224, 91624), (256, 80171), (364, 56384), (416, 49336), (448, 45812), (728, 28192), (832, 24668), (881, 23296), (896, 22906), (1456, 14096), (1664, 12334), (1762, 11648), (1792, 11453), (2912, 7048), (3328, 6167), (3524, 5824)]