65409280

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:531

約数の個数: 72

約数和(自身を含む): 158242392

約数和(自身を除く): 92833112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 373, 548, 640, 685, 746, 1096, 1280, 1370, 1492, 1865, 2192, 2740, 2984, 3730, 4384, 5480, 5968, 7460, 8768, 10960, 11936, 14920, 17536, 21920, 23872, 29840, 35072, 43840, 47744, 51101, 59680, 87680, 95488, 102202, 119360, 175360, 204404, 238720, 255505, 408808, 477440, 511010, 817616, 1022020, 1635232, 2044040, 3270464, 4088080, 6540928, 8176160, 13081856, 16352320, 32704640, 65409280]

約数ペア:

[(1, 65409280), (2, 32704640), (4, 16352320), (5, 13081856), (8, 8176160), (10, 6540928), (16, 4088080), (20, 3270464), (32, 2044040), (40, 1635232), (64, 1022020), (80, 817616), (128, 511010), (137, 477440), (160, 408808), (256, 255505), (274, 238720), (320, 204404), (373, 175360), (548, 119360), (640, 102202), (685, 95488), (746, 87680), (1096, 59680), (1280, 51101), (1370, 47744), (1492, 43840), (1865, 35072), (2192, 29840), (2740, 23872), (2984, 21920), (3730, 17536), (4384, 14920), (5480, 11936), (5968, 10960), (7460, 8768)]