28485795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:712

約数の個数: 48

約数和(自身を含む): 52335072

約数和(自身を除く): 23849277

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 169, 195, 221, 255, 507, 661, 663, 845, 1105, 1983, 2535, 2873, 3305, 3315, 8593, 8619, 9915, 11237, 14365, 25779, 33711, 42965, 43095, 56185, 111709, 128895, 146081, 168555, 335127, 438243, 558545, 730405, 1675635, 1899053, 2191215, 5697159, 9495265, 28485795]

約数ペア:

[(1, 28485795), (3, 9495265), (5, 5697159), (13, 2191215), (15, 1899053), (17, 1675635), (39, 730405), (51, 558545), (65, 438243), (85, 335127), (169, 168555), (195, 146081), (221, 128895), (255, 111709), (507, 56185), (661, 43095), (663, 42965), (845, 33711), (1105, 25779), (1983, 14365), (2535, 11237), (2873, 9915), (3305, 8619), (3315, 8593)]