1620255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1187}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 3193344

約数和(自身を除く): 1573089

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1187, 1365, 3561, 5935, 8309, 15431, 17805, 24927, 41545, 46293, 77155, 108017, 124635, 231465, 324051, 540085, 1620255]

約数ペア:

[(1, 1620255), (3, 540085), (5, 324051), (7, 231465), (13, 124635), (15, 108017), (21, 77155), (35, 46293), (39, 41545), (65, 24927), (91, 17805), (105, 15431), (195, 8309), (273, 5935), (455, 3561), (1187, 1365)]