204322820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{785857}}^1$

素因数の和:785879

約数の個数: 24

約数和(自身を含む): 462084504

約数和(自身を除く): 257761684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 785857, 1571714, 3143428, 3929285, 7858570, 10216141, 15717140, 20432282, 40864564, 51080705, 102161410, 204322820]

約数ペア:

[(1, 204322820), (2, 102161410), (4, 51080705), (5, 40864564), (10, 20432282), (13, 15717140), (20, 10216141), (26, 7858570), (52, 3929285), (65, 3143428), (130, 1571714), (260, 785857)]