640408699

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{1933}}^1$

素因数の和:2059

約数の個数: 32

約数和(自身を含む): 802068480

約数和(自身を除く): 161659781

約数列:

[1, 7, 19, 47, 53, 133, 329, 371, 893, 1007, 1933, 2491, 6251, 7049, 13531, 17437, 36727, 47329, 90851, 102449, 257089, 331303, 635957, 717143, 1726169, 1946531, 4815103, 12083183, 13625717, 33705721, 91486957, 640408699]

約数ペア:

[(1, 640408699), (7, 91486957), (19, 33705721), (47, 13625717), (53, 12083183), (133, 4815103), (329, 1946531), (371, 1726169), (893, 717143), (1007, 635957), (1933, 331303), (2491, 257089), (6251, 102449), (7049, 90851), (13531, 47329), (17437, 36727)]