20738368

素因数分解:

$2^6\times 7^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:432

約数の個数: 84

約数和(自身を含む): 50817780

約数和(自身を除く): 30079412

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 98, 112, 119, 136, 196, 224, 238, 272, 389, 392, 448, 476, 544, 778, 784, 833, 952, 1088, 1556, 1568, 1666, 1904, 2723, 3112, 3136, 3332, 3808, 5446, 6224, 6613, 6664, 7616, 10892, 12448, 13226, 13328, 19061, 21784, 24896, 26452, 26656, 38122, 43568, 46291, 52904, 53312, 76244, 87136, 92582, 105808, 152488, 174272, 185164, 211616, 304976, 324037, 370328, 423232, 609952, 648074, 740656, 1219904, 1296148, 1481312, 2592296, 2962624, 5184592, 10369184, 20738368]

約数ペア:

[(1, 20738368), (2, 10369184), (4, 5184592), (7, 2962624), (8, 2592296), (14, 1481312), (16, 1296148), (17, 1219904), (28, 740656), (32, 648074), (34, 609952), (49, 423232), (56, 370328), (64, 324037), (68, 304976), (98, 211616), (112, 185164), (119, 174272), (136, 152488), (196, 105808), (224, 92582), (238, 87136), (272, 76244), (389, 53312), (392, 52904), (448, 46291), (476, 43568), (544, 38122), (778, 26656), (784, 26452), (833, 24896), (952, 21784), (1088, 19061), (1556, 13328), (1568, 13226), (1666, 12448), (1904, 10892), (2723, 7616), (3112, 6664), (3136, 6613), (3332, 6224), (3808, 5446)]