20176093840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{182887}}^1$

素因数の和:183104

約数の個数: 80

約数和(自身を含む): 53883194112

約数和(自身を除く): 33707100272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1970, 2758, 3152, 3940, 5516, 6895, 7880, 11032, 13790, 15760, 22064, 27580, 55160, 110320, 182887, 365774, 731548, 914435, 1280209, 1463096, 1828870, 2560418, 2926192, 3657740, 5120836, 6401045, 7315480, 10241672, 12802090, 14630960, 20483344, 25604180, 36028739, 51208360, 72057478, 102416720, 144114956, 180143695, 252201173, 288229912, 360287390, 504402346, 576459824, 720574780, 1008804692, 1261005865, 1441149560, 2017609384, 2522011730, 2882299120, 4035218768, 5044023460, 10088046920, 20176093840]

約数ペア:

[(1, 20176093840), (2, 10088046920), (4, 5044023460), (5, 4035218768), (7, 2882299120), (8, 2522011730), (10, 2017609384), (14, 1441149560), (16, 1261005865), (20, 1008804692), (28, 720574780), (35, 576459824), (40, 504402346), (56, 360287390), (70, 288229912), (80, 252201173), (112, 180143695), (140, 144114956), (197, 102416720), (280, 72057478), (394, 51208360), (560, 36028739), (788, 25604180), (985, 20483344), (1379, 14630960), (1576, 12802090), (1970, 10241672), (2758, 7315480), (3152, 6401045), (3940, 5120836), (5516, 3657740), (6895, 2926192), (7880, 2560418), (11032, 1828870), (13790, 1463096), (15760, 1280209), (22064, 914435), (27580, 731548), (55160, 365774), (110320, 182887)]