20165068

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 45964800

約数和(自身を除く): 25799732

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 49, 77, 94, 98, 154, 188, 196, 199, 308, 329, 398, 517, 539, 658, 796, 1034, 1078, 1316, 1393, 2068, 2156, 2189, 2303, 2786, 3619, 4378, 4606, 5572, 7238, 8756, 9212, 9353, 9751, 14476, 15323, 18706, 19502, 25333, 30646, 37412, 39004, 50666, 61292, 65471, 101332, 102883, 107261, 130942, 205766, 214522, 261884, 411532, 429044, 458297, 720181, 916594, 1440362, 1833188, 2880724, 5041267, 10082534, 20165068]

約数ペア:

[(1, 20165068), (2, 10082534), (4, 5041267), (7, 2880724), (11, 1833188), (14, 1440362), (22, 916594), (28, 720181), (44, 458297), (47, 429044), (49, 411532), (77, 261884), (94, 214522), (98, 205766), (154, 130942), (188, 107261), (196, 102883), (199, 101332), (308, 65471), (329, 61292), (398, 50666), (517, 39004), (539, 37412), (658, 30646), (796, 25333), (1034, 19502), (1078, 18706), (1316, 15323), (1393, 14476), (2068, 9751), (2156, 9353), (2189, 9212), (2303, 8756), (2786, 7238), (3619, 5572), (4378, 4606)]