65721904

素因数分解:

$2^4\times {\mathrm{193}}^1\times {\mathrm{21283}}^1$

素因数の和:21484

約数の個数: 20

約数和(自身を含む): 128001976

約数和(自身を除く): 62280072

約数列:

[1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 21283, 42566, 85132, 170264, 340528, 4107619, 8215238, 16430476, 32860952, 65721904]

約数ペア:

[(1, 65721904), (2, 32860952), (4, 16430476), (8, 8215238), (16, 4107619), (193, 340528), (386, 170264), (772, 85132), (1544, 42566), (3088, 21283)]