20664896

素因数分解:

$2^6\times 7^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:451

約数の個数: 56

約数和(自身を含む): 47304960

約数和(自身を除く): 26640064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 193, 224, 239, 386, 448, 478, 772, 956, 1351, 1544, 1673, 1912, 2702, 3088, 3346, 3824, 5404, 6176, 6692, 7648, 10808, 12352, 13384, 15296, 21616, 26768, 43232, 46127, 53536, 86464, 92254, 107072, 184508, 322889, 369016, 645778, 738032, 1291556, 1476064, 2583112, 2952128, 5166224, 10332448, 20664896]

約数ペア:

[(1, 20664896), (2, 10332448), (4, 5166224), (7, 2952128), (8, 2583112), (14, 1476064), (16, 1291556), (28, 738032), (32, 645778), (56, 369016), (64, 322889), (112, 184508), (193, 107072), (224, 92254), (239, 86464), (386, 53536), (448, 46127), (478, 43232), (772, 26768), (956, 21616), (1351, 15296), (1544, 13384), (1673, 12352), (1912, 10808), (2702, 7648), (3088, 6692), (3346, 6176), (3824, 5404)]