20804905275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3602581}}^1$

素因数の和:3602612

約数の個数: 48

約数和(自身を含む): 42885136128

約数和(自身を除く): 22080230853

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 55, 75, 77, 105, 165, 175, 231, 275, 385, 525, 825, 1155, 1925, 5775, 3602581, 10807743, 18012905, 25218067, 39628391, 54038715, 75654201, 90064525, 118885173, 126090335, 198141955, 270193575, 277398737, 378271005, 594425865, 630451675, 832196211, 990709775, 1386993685, 1891355025, 2972129325, 4160981055, 6934968425, 20804905275]

約数ペア:

[(1, 20804905275), (3, 6934968425), (5, 4160981055), (7, 2972129325), (11, 1891355025), (15, 1386993685), (21, 990709775), (25, 832196211), (33, 630451675), (35, 594425865), (55, 378271005), (75, 277398737), (77, 270193575), (105, 198141955), (165, 126090335), (175, 118885173), (231, 90064525), (275, 75654201), (385, 54038715), (525, 39628391), (825, 25218067), (1155, 18012905), (1925, 10807743), (5775, 3602581)]