20730255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15187}}^1$

素因数の和:15215

約数の個数: 32

約数和(自身を含む): 40825344

約数和(自身を除く): 20095089

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15187, 45561, 75935, 106309, 197431, 227805, 318927, 531545, 592293, 987155, 1382017, 1594635, 2961465, 4146051, 6910085, 20730255]

約数ペア:

[(1, 20730255), (3, 6910085), (5, 4146051), (7, 2961465), (13, 1594635), (15, 1382017), (21, 987155), (35, 592293), (39, 531545), (65, 318927), (91, 227805), (105, 197431), (195, 106309), (273, 75935), (455, 45561), (1365, 15187)]