161741320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311041}}^1$

素因数の和:311065

約数の個数: 32

約数和(自身を含む): 391912920

約数和(自身を除く): 230171600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 311041, 622082, 1244164, 1555205, 2488328, 3110410, 4043533, 6220820, 8087066, 12441640, 16174132, 20217665, 32348264, 40435330, 80870660, 161741320]

約数ペア:

[(1, 161741320), (2, 80870660), (4, 40435330), (5, 32348264), (8, 20217665), (10, 16174132), (13, 12441640), (20, 8087066), (26, 6220820), (40, 4043533), (52, 3110410), (65, 2488328), (104, 1555205), (130, 1244164), (260, 622082), (520, 311041)]