20428610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1361}}^1$

素因数の和:1466

約数の個数: 32

約数和(自身を含む): 39225600

約数和(自身を除く): 18796990

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 190, 395, 790, 1361, 1501, 2722, 3002, 6805, 7505, 13610, 15010, 25859, 51718, 107519, 129295, 215038, 258590, 537595, 1075190, 2042861, 4085722, 10214305, 20428610]

約数ペア:

[(1, 20428610), (2, 10214305), (5, 4085722), (10, 2042861), (19, 1075190), (38, 537595), (79, 258590), (95, 215038), (158, 129295), (190, 107519), (395, 51718), (790, 25859), (1361, 15010), (1501, 13610), (2722, 7505), (3002, 6805)]