520013320

素因数分解:

$2^3\times 5^1\times {\mathrm{13000333}}^1$

素因数の和:13000344

約数の個数: 16

約数和(自身を含む): 1170030060

約数和(自身を除く): 650016740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13000333, 26000666, 52001332, 65001665, 104002664, 130003330, 260006660, 520013320]

約数ペア:

[(1, 520013320), (2, 260006660), (4, 130003330), (5, 104002664), (8, 65001665), (10, 52001332), (20, 26000666), (40, 13000333)]