20173644560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{39163}}^1$

素因数の和:39360

約数の個数: 80

約数和(自身を含む): 48252554496

約数和(自身を除く): 28078909936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 137, 188, 235, 274, 376, 470, 548, 685, 752, 940, 1096, 1370, 1880, 2192, 2740, 3760, 5480, 6439, 10960, 12878, 25756, 32195, 39163, 51512, 64390, 78326, 103024, 128780, 156652, 195815, 257560, 313304, 391630, 515120, 626608, 783260, 1566520, 1840661, 3133040, 3681322, 5365331, 7362644, 9203305, 10730662, 14725288, 18406610, 21461324, 26826655, 29450576, 36813220, 42922648, 53653310, 73626440, 85845296, 107306620, 147252880, 214613240, 252170557, 429226480, 504341114, 1008682228, 1260852785, 2017364456, 2521705570, 4034728912, 5043411140, 10086822280, 20173644560]

約数ペア:

[(1, 20173644560), (2, 10086822280), (4, 5043411140), (5, 4034728912), (8, 2521705570), (10, 2017364456), (16, 1260852785), (20, 1008682228), (40, 504341114), (47, 429226480), (80, 252170557), (94, 214613240), (137, 147252880), (188, 107306620), (235, 85845296), (274, 73626440), (376, 53653310), (470, 42922648), (548, 36813220), (685, 29450576), (752, 26826655), (940, 21461324), (1096, 18406610), (1370, 14725288), (1880, 10730662), (2192, 9203305), (2740, 7362644), (3760, 5365331), (5480, 3681322), (6439, 3133040), (10960, 1840661), (12878, 1566520), (25756, 783260), (32195, 626608), (39163, 515120), (51512, 391630), (64390, 313304), (78326, 257560), (103024, 195815), (128780, 156652)]