27850815

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 51217920

約数和(自身を除く): 23367105

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 207, 213, 345, 355, 379, 639, 1035, 1065, 1137, 1633, 1895, 3195, 3411, 4899, 5685, 8165, 8717, 14697, 17055, 24495, 26151, 26909, 43585, 73485, 78453, 80727, 130755, 134545, 242181, 392265, 403635, 618907, 1210905, 1856721, 3094535, 5570163, 9283605, 27850815]

約数ペア:

[(1, 27850815), (3, 9283605), (5, 5570163), (9, 3094535), (15, 1856721), (23, 1210905), (45, 618907), (69, 403635), (71, 392265), (115, 242181), (207, 134545), (213, 130755), (345, 80727), (355, 78453), (379, 73485), (639, 43585), (1035, 26909), (1065, 26151), (1137, 24495), (1633, 17055), (1895, 14697), (3195, 8717), (3411, 8165), (4899, 5685)]