25857940

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2017}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 54413352

約数和(自身を除く): 28555412

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2017, 2564, 3205, 4034, 6410, 8068, 10085, 12820, 20170, 40340, 1292897, 2585794, 5171588, 6464485, 12928970, 25857940]

約数ペア:

[(1, 25857940), (2, 12928970), (4, 6464485), (5, 5171588), (10, 2585794), (20, 1292897), (641, 40340), (1282, 20170), (2017, 12820), (2564, 10085), (3205, 8068), (4034, 6410)]