240639008

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{977}}^1$

素因数の和:1209

約数の個数: 48

約数和(自身を含む): 487982880

約数和(自身を除く): 247343872

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 179, 344, 358, 688, 716, 977, 1376, 1432, 1954, 2864, 3908, 5728, 7697, 7816, 15394, 15632, 30788, 31264, 42011, 61576, 84022, 123152, 168044, 174883, 246304, 336088, 349766, 672176, 699532, 1344352, 1399064, 2798128, 5596256, 7519969, 15039938, 30079876, 60159752, 120319504, 240639008]

約数ペア:

[(1, 240639008), (2, 120319504), (4, 60159752), (8, 30079876), (16, 15039938), (32, 7519969), (43, 5596256), (86, 2798128), (172, 1399064), (179, 1344352), (344, 699532), (358, 672176), (688, 349766), (716, 336088), (977, 246304), (1376, 174883), (1432, 168044), (1954, 123152), (2864, 84022), (3908, 61576), (5728, 42011), (7697, 31264), (7816, 30788), (15394, 15632)]