1320256

素因数分解:

$2^6\times 7^2\times {\mathrm{421}}^1$

素因数の和:447

約数の個数: 42

約数和(自身を含む): 3054858

約数和(自身を除く): 1734602

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 421, 448, 784, 842, 1568, 1684, 2947, 3136, 3368, 5894, 6736, 11788, 13472, 20629, 23576, 26944, 41258, 47152, 82516, 94304, 165032, 188608, 330064, 660128, 1320256]

約数ペア:

[(1, 1320256), (2, 660128), (4, 330064), (7, 188608), (8, 165032), (14, 94304), (16, 82516), (28, 47152), (32, 41258), (49, 26944), (56, 23576), (64, 20629), (98, 13472), (112, 11788), (196, 6736), (224, 5894), (392, 3368), (421, 3136), (448, 2947), (784, 1684), (842, 1568)]