19758540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{329309}}^1$

素因数の和:329321

約数の個数: 24

約数和(自身を含む): 55324080

約数和(自身を除く): 35565540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 329309, 658618, 987927, 1317236, 1646545, 1975854, 3293090, 3951708, 4939635, 6586180, 9879270, 19758540]

約数ペア:

[(1, 19758540), (2, 9879270), (3, 6586180), (4, 4939635), (5, 3951708), (6, 3293090), (10, 1975854), (12, 1646545), (15, 1317236), (20, 987927), (30, 658618), (60, 329309)]