81866708

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1693}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 179862144

約数和(自身を除く): 97995436

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 157, 308, 314, 628, 1099, 1693, 1727, 2198, 3386, 3454, 4396, 6772, 6908, 11851, 12089, 18623, 23702, 24178, 37246, 47404, 48356, 74492, 130361, 260722, 265801, 521444, 531602, 1063204, 1860607, 2923811, 3721214, 5847622, 7442428, 11695244, 20466677, 40933354, 81866708]

約数ペア:

[(1, 81866708), (2, 40933354), (4, 20466677), (7, 11695244), (11, 7442428), (14, 5847622), (22, 3721214), (28, 2923811), (44, 1860607), (77, 1063204), (154, 531602), (157, 521444), (308, 265801), (314, 260722), (628, 130361), (1099, 74492), (1693, 48356), (1727, 47404), (2198, 37246), (3386, 24178), (3454, 23702), (4396, 18623), (6772, 12089), (6908, 11851)]