25285940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17807}}^1$

素因数の和:17887

約数の個数: 24

約数和(自身を含む): 53851392

約数和(自身を除く): 28565452

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 17807, 35614, 71228, 89035, 178070, 356140, 1264297, 2528594, 5057188, 6321485, 12642970, 25285940]

約数ペア:

[(1, 25285940), (2, 12642970), (4, 6321485), (5, 5057188), (10, 2528594), (20, 1264297), (71, 356140), (142, 178070), (284, 89035), (355, 71228), (710, 35614), (1420, 17807)]