57136840

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{2161}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 128811960

約数和(自身を除く): 71675120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 2161, 2644, 3305, 4322, 5288, 6610, 8644, 10805, 13220, 17288, 21610, 26440, 43220, 86440, 1428421, 2856842, 5713684, 7142105, 11427368, 14284210, 28568420, 57136840]

約数ペア:

[(1, 57136840), (2, 28568420), (4, 14284210), (5, 11427368), (8, 7142105), (10, 5713684), (20, 2856842), (40, 1428421), (661, 86440), (1322, 43220), (2161, 26440), (2644, 21610), (3305, 17288), (4322, 13220), (5288, 10805), (6610, 8644)]