25818280

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2297}}^1$

素因数の和:2589

約数の個数: 32

約数和(自身を含む): 58323240

約数和(自身を除く): 32504960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2297, 2810, 4594, 5620, 9188, 11240, 11485, 18376, 22970, 45940, 91880, 645457, 1290914, 2581828, 3227285, 5163656, 6454570, 12909140, 25818280]

約数ペア:

[(1, 25818280), (2, 12909140), (4, 6454570), (5, 5163656), (8, 3227285), (10, 2581828), (20, 1290914), (40, 645457), (281, 91880), (562, 45940), (1124, 22970), (1405, 18376), (2248, 11485), (2297, 11240), (2810, 9188), (4594, 5620)]