25641940

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{9787}}^1$

素因数の和:9927

約数の個数: 24

約数和(自身を含む): 54264672

約数和(自身を除く): 28622732

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 9787, 19574, 39148, 48935, 97870, 195740, 1282097, 2564194, 5128388, 6410485, 12820970, 25641940]

約数ペア:

[(1, 25641940), (2, 12820970), (4, 6410485), (5, 5128388), (10, 2564194), (20, 1282097), (131, 195740), (262, 97870), (524, 48935), (655, 39148), (1310, 19574), (2620, 9787)]