19185940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12143}}^1$

素因数の和:12231

約数の個数: 24

約数和(自身を含む): 40803840

約数和(自身を除く): 21617900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12143, 24286, 48572, 60715, 121430, 242860, 959297, 1918594, 3837188, 4796485, 9592970, 19185940]

約数ペア:

[(1, 19185940), (2, 9592970), (4, 4796485), (5, 3837188), (10, 1918594), (20, 959297), (79, 242860), (158, 121430), (316, 60715), (395, 48572), (790, 24286), (1580, 12143)]