208506515

素因数分解:

$5^1\times 7^2\times {\mathrm{313}}^1\times {\mathrm{2719}}^1$

素因数の和:3051

約数の個数: 24

約数和(自身を含む): 292095360

約数和(自身を除く): 83588845

約数列:

[1, 5, 7, 35, 49, 245, 313, 1565, 2191, 2719, 10955, 13595, 15337, 19033, 76685, 95165, 133231, 666155, 851047, 4255235, 5957329, 29786645, 41701303, 208506515]

約数ペア:

[(1, 208506515), (5, 41701303), (7, 29786645), (35, 5957329), (49, 4255235), (245, 851047), (313, 666155), (1565, 133231), (2191, 95165), (2719, 76685), (10955, 19033), (13595, 15337)]