664851985

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{373}}^1\times {\mathrm{401}}^1$

素因数の和:913

約数の個数: 32

約数和(自身を含む): 923738112

約数和(自身を除く): 258886127

約数列:

[1, 5, 7, 35, 127, 373, 401, 635, 889, 1865, 2005, 2611, 2807, 4445, 13055, 14035, 47371, 50927, 149573, 236855, 254635, 331597, 356489, 747865, 1047011, 1657985, 1782445, 5235055, 18995771, 94978855, 132970397, 664851985]

約数ペア:

[(1, 664851985), (5, 132970397), (7, 94978855), (35, 18995771), (127, 5235055), (373, 1782445), (401, 1657985), (635, 1047011), (889, 747865), (1865, 356489), (2005, 331597), (2611, 254635), (2807, 236855), (4445, 149573), (13055, 50927), (14035, 47371)]