639296

素因数分解:

$2^6\times 7^1\times {\mathrm{1427}}^1$

素因数の和:1446

約数の個数: 28

約数和(自身を含む): 1450848

約数和(自身を除く): 811552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 1427, 2854, 5708, 9989, 11416, 19978, 22832, 39956, 45664, 79912, 91328, 159824, 319648, 639296]

約数ペア:

[(1, 639296), (2, 319648), (4, 159824), (7, 91328), (8, 79912), (14, 45664), (16, 39956), (28, 22832), (32, 19978), (56, 11416), (64, 9989), (112, 5708), (224, 2854), (448, 1427)]