28976205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1865

約数の個数: 32

約数和(自身を含む): 49434624

約数和(自身を除く): 20458419

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 1787, 3243, 5361, 5405, 8935, 16215, 26805, 41101, 83989, 123303, 205505, 251967, 419945, 616515, 1259835, 1931747, 5795241, 9658735, 28976205]

約数ペア:

[(1, 28976205), (3, 9658735), (5, 5795241), (15, 1931747), (23, 1259835), (47, 616515), (69, 419945), (115, 251967), (141, 205505), (235, 123303), (345, 83989), (705, 41101), (1081, 26805), (1787, 16215), (3243, 8935), (5361, 5405)]