12145940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31963}}^1$

素因数の和:31991

約数の個数: 24

約数和(自身を含む): 26849760

約数和(自身を除く): 14703820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 31963, 63926, 127852, 159815, 319630, 607297, 639260, 1214594, 2429188, 3036485, 6072970, 12145940]

約数ペア:

[(1, 12145940), (2, 6072970), (4, 3036485), (5, 2429188), (10, 1214594), (19, 639260), (20, 607297), (38, 319630), (76, 159815), (95, 127852), (190, 63926), (380, 31963)]