1640128

素因数分解:

$2^6\times 7^2\times {\mathrm{523}}^1$

素因数の和:549

約数の個数: 42

約数和(自身を含む): 3793236

約数和(自身を除く): 2153108

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 523, 784, 1046, 1568, 2092, 3136, 3661, 4184, 7322, 8368, 14644, 16736, 25627, 29288, 33472, 51254, 58576, 102508, 117152, 205016, 234304, 410032, 820064, 1640128]

約数ペア:

[(1, 1640128), (2, 820064), (4, 410032), (7, 234304), (8, 205016), (14, 117152), (16, 102508), (28, 58576), (32, 51254), (49, 33472), (56, 29288), (64, 25627), (98, 16736), (112, 14644), (196, 8368), (224, 7322), (392, 4184), (448, 3661), (523, 3136), (784, 2092), (1046, 1568)]