208590985

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{6481}}^1$

素因数の和:6684

約数の個数: 16

約数和(自身を含む): 258087312

約数和(自身を除く): 49496327

約数列:

[1, 5, 41, 157, 205, 785, 6437, 6481, 32185, 32405, 265721, 1017517, 1328605, 5087585, 41718197, 208590985]

約数ペア:

[(1, 208590985), (5, 41718197), (41, 5087585), (157, 1328605), (205, 1017517), (785, 265721), (6437, 32405), (6481, 32185)]