20604416

素因数分解:

$2^9\times 7^1\times {\mathrm{5749}}^1$

素因数の和:5774

約数の個数: 40

約数和(自身を含む): 47058000

約数和(自身を除く): 26453584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5749, 11498, 22996, 40243, 45992, 80486, 91984, 160972, 183968, 321944, 367936, 643888, 735872, 1287776, 1471744, 2575552, 2943488, 5151104, 10302208, 20604416]

約数ペア:

[(1, 20604416), (2, 10302208), (4, 5151104), (7, 2943488), (8, 2575552), (14, 1471744), (16, 1287776), (28, 735872), (32, 643888), (56, 367936), (64, 321944), (112, 183968), (128, 160972), (224, 91984), (256, 80486), (448, 45992), (512, 40243), (896, 22996), (1792, 11498), (3584, 5749)]