12744260

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{991}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 26831616

約数和(自身を除く): 14087356

約数列:

[1, 2, 4, 5, 10, 20, 643, 991, 1286, 1982, 2572, 3215, 3964, 4955, 6430, 9910, 12860, 19820, 637213, 1274426, 2548852, 3186065, 6372130, 12744260]

約数ペア:

[(1, 12744260), (2, 6372130), (4, 3186065), (5, 2548852), (10, 1274426), (20, 637213), (643, 19820), (991, 12860), (1286, 9910), (1982, 6430), (2572, 4955), (3215, 3964)]