19156980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2297}}^1$

素因数の和:2448

約数の個数: 48

約数和(自身を含む): 54048960

約数和(自身を除く): 34891980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2297, 2780, 4170, 4594, 6891, 8340, 9188, 11485, 13782, 22970, 27564, 34455, 45940, 68910, 137820, 319283, 638566, 957849, 1277132, 1596415, 1915698, 3192830, 3831396, 4789245, 6385660, 9578490, 19156980]

約数ペア:

[(1, 19156980), (2, 9578490), (3, 6385660), (4, 4789245), (5, 3831396), (6, 3192830), (10, 1915698), (12, 1596415), (15, 1277132), (20, 957849), (30, 638566), (60, 319283), (139, 137820), (278, 68910), (417, 45940), (556, 34455), (695, 27564), (834, 22970), (1390, 13782), (1668, 11485), (2085, 9188), (2297, 8340), (2780, 6891), (4170, 4594)]