211111520

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{9631}}^1$

素因数の和:9783

約数の個数: 48

約数和(自身を含む): 502443648

約数和(自身を除く): 291332128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1370, 2192, 2740, 4384, 5480, 9631, 10960, 19262, 21920, 38524, 48155, 77048, 96310, 154096, 192620, 308192, 385240, 770480, 1319447, 1540960, 2638894, 5277788, 6597235, 10555576, 13194470, 21111152, 26388940, 42222304, 52777880, 105555760, 211111520]

約数ペア:

[(1, 211111520), (2, 105555760), (4, 52777880), (5, 42222304), (8, 26388940), (10, 21111152), (16, 13194470), (20, 10555576), (32, 6597235), (40, 5277788), (80, 2638894), (137, 1540960), (160, 1319447), (274, 770480), (548, 385240), (685, 308192), (1096, 192620), (1370, 154096), (2192, 96310), (2740, 77048), (4384, 48155), (5480, 38524), (9631, 21920), (10960, 19262)]