80840960

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:619

約数の個数: 72

約数和(自身を含む): 195475896

約数和(自身を除く): 114634936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 461, 548, 640, 685, 922, 1096, 1280, 1370, 1844, 2192, 2305, 2740, 3688, 4384, 4610, 5480, 7376, 8768, 9220, 10960, 14752, 17536, 18440, 21920, 29504, 35072, 36880, 43840, 59008, 63157, 73760, 87680, 118016, 126314, 147520, 175360, 252628, 295040, 315785, 505256, 590080, 631570, 1010512, 1263140, 2021024, 2526280, 4042048, 5052560, 8084096, 10105120, 16168192, 20210240, 40420480, 80840960]

約数ペア:

[(1, 80840960), (2, 40420480), (4, 20210240), (5, 16168192), (8, 10105120), (10, 8084096), (16, 5052560), (20, 4042048), (32, 2526280), (40, 2021024), (64, 1263140), (80, 1010512), (128, 631570), (137, 590080), (160, 505256), (256, 315785), (274, 295040), (320, 252628), (461, 175360), (548, 147520), (640, 126314), (685, 118016), (922, 87680), (1096, 73760), (1280, 63157), (1370, 59008), (1844, 43840), (2192, 36880), (2305, 35072), (2740, 29504), (3688, 21920), (4384, 18440), (4610, 17536), (5480, 14752), (7376, 10960), (8768, 9220)]