129267940

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{14723}}^1$

素因数の和:15171

約数の個数: 24

約数和(自身を含む): 272099520

約数和(自身を除く): 142831580

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 14723, 29446, 58892, 73615, 147230, 294460, 6463397, 12926794, 25853588, 32316985, 64633970, 129267940]

約数ペア:

[(1, 129267940), (2, 64633970), (4, 32316985), (5, 25853588), (10, 12926794), (20, 6463397), (439, 294460), (878, 147230), (1756, 73615), (2195, 58892), (4390, 29446), (8780, 14723)]