218545180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1561037}}^1$

素因数の和:1561053

約数の個数: 24

約数和(自身を含む): 524508768

約数和(自身を除く): 305963588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1561037, 3122074, 6244148, 7805185, 10927259, 15610370, 21854518, 31220740, 43709036, 54636295, 109272590, 218545180]

約数ペア:

[(1, 218545180), (2, 109272590), (4, 54636295), (5, 43709036), (7, 31220740), (10, 21854518), (14, 15610370), (20, 10927259), (28, 7805185), (35, 6244148), (70, 3122074), (140, 1561037)]