40420480

素因数分解:

$2^7\times 5^1\times {\mathrm{137}}^1\times {\mathrm{461}}^1$

素因数の和:617

約数の個数: 64

約数和(自身を含む): 97546680

約数和(自身を除く): 57126200

約数列:

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

約数ペア:

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