1398656

素因数分解:

$2^7\times 7^2\times {\mathrm{223}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 3255840

約数和(自身を除く): 1857184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 223, 224, 392, 446, 448, 784, 892, 896, 1561, 1568, 1784, 3122, 3136, 3568, 6244, 6272, 7136, 10927, 12488, 14272, 21854, 24976, 28544, 43708, 49952, 87416, 99904, 174832, 199808, 349664, 699328, 1398656]

約数ペア:

[(1, 1398656), (2, 699328), (4, 349664), (7, 199808), (8, 174832), (14, 99904), (16, 87416), (28, 49952), (32, 43708), (49, 28544), (56, 24976), (64, 21854), (98, 14272), (112, 12488), (128, 10927), (196, 7136), (223, 6272), (224, 6244), (392, 3568), (446, 3136), (448, 3122), (784, 1784), (892, 1568), (896, 1561)]