20167840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1637}}^1$

素因数の和:1670

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 39271904

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1637, 1760, 2464, 3080, 3274, 6160, 6548, 8185, 11459, 12320, 13096, 16370, 18007, 22918, 26192, 32740, 36014, 45836, 52384, 57295, 65480, 72028, 90035, 91672, 114590, 126049, 130960, 144056, 180070, 183344, 229180, 252098, 261920, 288112, 360140, 366688, 458360, 504196, 576224, 630245, 720280, 916720, 1008392, 1260490, 1440560, 1833440, 2016784, 2520980, 2881120, 4033568, 5041960, 10083920, 20167840]

約数ペア:

[(1, 20167840), (2, 10083920), (4, 5041960), (5, 4033568), (7, 2881120), (8, 2520980), (10, 2016784), (11, 1833440), (14, 1440560), (16, 1260490), (20, 1008392), (22, 916720), (28, 720280), (32, 630245), (35, 576224), (40, 504196), (44, 458360), (55, 366688), (56, 360140), (70, 288112), (77, 261920), (80, 252098), (88, 229180), (110, 183344), (112, 180070), (140, 144056), (154, 130960), (160, 126049), (176, 114590), (220, 91672), (224, 90035), (280, 72028), (308, 65480), (352, 57295), (385, 52384), (440, 45836), (560, 36014), (616, 32740), (770, 26192), (880, 22918), (1120, 18007), (1232, 16370), (1540, 13096), (1637, 12320), (1760, 11459), (2464, 8185), (3080, 6548), (3274, 6160)]