81405368

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{15679}}^1$

素因数の和:15755

約数の個数: 32

約数和(自身を含む): 169344000

約数和(自身を除く): 87938632

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 236, 472, 649, 1298, 2596, 5192, 15679, 31358, 62716, 125432, 172469, 344938, 689876, 925061, 1379752, 1850122, 3700244, 7400488, 10175671, 20351342, 40702684, 81405368]

約数ペア:

[(1, 81405368), (2, 40702684), (4, 20351342), (8, 10175671), (11, 7400488), (22, 3700244), (44, 1850122), (59, 1379752), (88, 925061), (118, 689876), (236, 344938), (472, 172469), (649, 125432), (1298, 62716), (2596, 31358), (5192, 15679)]