206475440

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{18839}}^1$

素因数の和:18989

約数の個数: 40

約数和(自身を含む): 483585120

約数和(自身を除く): 277109680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 5480, 10960, 18839, 37678, 75356, 94195, 150712, 188390, 301424, 376780, 753560, 1507120, 2580943, 5161886, 10323772, 12904715, 20647544, 25809430, 41295088, 51618860, 103237720, 206475440]

約数ペア:

[(1, 206475440), (2, 103237720), (4, 51618860), (5, 41295088), (8, 25809430), (10, 20647544), (16, 12904715), (20, 10323772), (40, 5161886), (80, 2580943), (137, 1507120), (274, 753560), (548, 376780), (685, 301424), (1096, 188390), (1370, 150712), (2192, 94195), (2740, 75356), (5480, 37678), (10960, 18839)]