27981225

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5407}}^1$

素因数の和:5446

約数の個数: 36

約数和(自身を含む): 52306176

約数和(自身を除く): 24324951

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 5407, 16221, 27035, 48663, 81105, 124361, 135175, 243315, 373083, 405525, 621805, 1119249, 1216575, 1865415, 3109025, 5596245, 9327075, 27981225]

約数ペア:

[(1, 27981225), (3, 9327075), (5, 5596245), (9, 3109025), (15, 1865415), (23, 1216575), (25, 1119249), (45, 621805), (69, 405525), (75, 373083), (115, 243315), (207, 135175), (225, 124361), (345, 81105), (575, 48663), (1035, 27035), (1725, 16221), (5175, 5407)]