28920645

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1831}}^1$

素因数の和:1864

約数の個数: 48

約数和(自身を含む): 56015232

約数和(自身を除く): 27094587

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 1053, 1215, 1755, 1831, 3159, 5265, 5493, 9155, 15795, 16479, 23803, 27465, 49437, 71409, 82395, 119015, 148311, 214227, 247185, 357045, 444933, 642681, 741555, 1071135, 1928043, 2224665, 3213405, 5784129, 9640215, 28920645]

約数ペア:

[(1, 28920645), (3, 9640215), (5, 5784129), (9, 3213405), (13, 2224665), (15, 1928043), (27, 1071135), (39, 741555), (45, 642681), (65, 444933), (81, 357045), (117, 247185), (135, 214227), (195, 148311), (243, 119015), (351, 82395), (405, 71409), (585, 49437), (1053, 27465), (1215, 23803), (1755, 16479), (1831, 15795), (3159, 9155), (5265, 5493)]