20127245870

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{8563}}^1$

素因数の和:8817

約数の個数: 64

約数和(自身を含む): 38846304000

約数和(自身を除く): 18719058130

約数列:

[1, 2, 5, 10, 19, 38, 89, 95, 139, 178, 190, 278, 445, 695, 890, 1390, 1691, 2641, 3382, 5282, 8455, 8563, 12371, 13205, 16910, 17126, 24742, 26410, 42815, 61855, 85630, 123710, 162697, 235049, 325394, 470098, 762107, 813485, 1175245, 1190257, 1524214, 1626970, 2350490, 2380514, 3810535, 5951285, 7621070, 11902570, 14480033, 22614883, 28960066, 45229766, 72400165, 105932873, 113074415, 144800330, 211865746, 226148830, 529664365, 1059328730, 2012724587, 4025449174, 10063622935, 20127245870]

約数ペア:

[(1, 20127245870), (2, 10063622935), (5, 4025449174), (10, 2012724587), (19, 1059328730), (38, 529664365), (89, 226148830), (95, 211865746), (139, 144800330), (178, 113074415), (190, 105932873), (278, 72400165), (445, 45229766), (695, 28960066), (890, 22614883), (1390, 14480033), (1691, 11902570), (2641, 7621070), (3382, 5951285), (5282, 3810535), (8455, 2380514), (8563, 2350490), (12371, 1626970), (13205, 1524214), (16910, 1190257), (17126, 1175245), (24742, 813485), (26410, 762107), (42815, 470098), (61855, 325394), (85630, 235049), (123710, 162697)]