19440780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{709}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 54630240

約数和(自身を除く): 35189460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 457, 709, 914, 1371, 1418, 1828, 2127, 2285, 2742, 2836, 3545, 4254, 4570, 5484, 6855, 7090, 8508, 9140, 10635, 13710, 14180, 21270, 27420, 42540, 324013, 648026, 972039, 1296052, 1620065, 1944078, 3240130, 3888156, 4860195, 6480260, 9720390, 19440780]

約数ペア:

[(1, 19440780), (2, 9720390), (3, 6480260), (4, 4860195), (5, 3888156), (6, 3240130), (10, 1944078), (12, 1620065), (15, 1296052), (20, 972039), (30, 648026), (60, 324013), (457, 42540), (709, 27420), (914, 21270), (1371, 14180), (1418, 13710), (1828, 10635), (2127, 9140), (2285, 8508), (2742, 7090), (2836, 6855), (3545, 5484), (4254, 4570)]