20450405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{5119}}^1$

素因数の和:5188

約数の個数: 16

約数和(自身を含む): 26542080

約数和(自身を除く): 6091675

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 5119, 25595, 87023, 240593, 435115, 1202965, 4090081, 20450405]

約数ペア:

[(1, 20450405), (5, 4090081), (17, 1202965), (47, 435115), (85, 240593), (235, 87023), (799, 25595), (3995, 5119)]