646727680

素因数分解:

$2^{11}\times 5^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:625

約数の個数: 96

約数和(自身を含む): 1566484920

約数和(自身を除く): 919757240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 461, 512, 548, 640, 685, 922, 1024, 1096, 1280, 1370, 1844, 2048, 2192, 2305, 2560, 2740, 3688, 4384, 4610, 5120, 5480, 7376, 8768, 9220, 10240, 10960, 14752, 17536, 18440, 21920, 29504, 35072, 36880, 43840, 59008, 63157, 70144, 73760, 87680, 118016, 126314, 140288, 147520, 175360, 236032, 252628, 280576, 295040, 315785, 350720, 472064, 505256, 590080, 631570, 701440, 944128, 1010512, 1180160, 1263140, 1402880, 2021024, 2360320, 2526280, 4042048, 4720640, 5052560, 8084096, 10105120, 16168192, 20210240, 32336384, 40420480, 64672768, 80840960, 129345536, 161681920, 323363840, 646727680]

約数ペア:

[(1, 646727680), (2, 323363840), (4, 161681920), (5, 129345536), (8, 80840960), (10, 64672768), (16, 40420480), (20, 32336384), (32, 20210240), (40, 16168192), (64, 10105120), (80, 8084096), (128, 5052560), (137, 4720640), (160, 4042048), (256, 2526280), (274, 2360320), (320, 2021024), (461, 1402880), (512, 1263140), (548, 1180160), (640, 1010512), (685, 944128), (922, 701440), (1024, 631570), (1096, 590080), (1280, 505256), (1370, 472064), (1844, 350720), (2048, 315785), (2192, 295040), (2305, 280576), (2560, 252628), (2740, 236032), (3688, 175360), (4384, 147520), (4610, 140288), (5120, 126314), (5480, 118016), (7376, 87680), (8768, 73760), (9220, 70144), (10240, 63157), (10960, 59008), (14752, 43840), (17536, 36880), (18440, 35072), (21920, 29504)]