660128

素因数分解:

$2^5\times 7^2\times {\mathrm{421}}^1$

素因数の和:445

約数の個数: 36

約数和(自身を含む): 1515402

約数和(自身を除く): 855274

約数列:

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

約数ペア:

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