About the Number
12811040
2進数表記:110000110111101100100000
漢数字表記:千二百八十一万千四十
素因数分解:
素因数の和:306
約数の個数: 96
約数和(自身を含む): 34292160
約数和(自身を除く): 21481120
約数列:
[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 80, 88, 110, 116, 145, 160, 176, 220, 232, 251, 290, 319, 352, 440, 464, 502, 580, 638, 880, 928, 1004, 1160, 1255, 1276, 1595, 1760, 2008, 2320, 2510, 2552, 2761, 3190, 4016, 4640, 5020, 5104, 5522, 6380, 7279, 8032, 10040, 10208, 11044, 12760, 13805, 14558, 20080, 22088, 25520, 27610, 29116, 36395, 40160, 44176, 51040, 55220, 58232, 72790, 80069, 88352, 110440, 116464, 145580, 160138, 220880, 232928, 291160, 320276, 400345, 441760, 582320, 640552, 800690, 1164640, 1281104, 1601380, 2562208, 3202760, 6405520, 12811040]
約数ペア:
[(1, 12811040), (2, 6405520), (4, 3202760), (5, 2562208), (8, 1601380), (10, 1281104), (11, 1164640), (16, 800690), (20, 640552), (22, 582320), (29, 441760), (32, 400345), (40, 320276), (44, 291160), (55, 232928), (58, 220880), (80, 160138), (88, 145580), (110, 116464), (116, 110440), (145, 88352), (160, 80069), (176, 72790), (220, 58232), (232, 55220), (251, 51040), (290, 44176), (319, 40160), (352, 36395), (440, 29116), (464, 27610), (502, 25520), (580, 22088), (638, 20080), (880, 14558), (928, 13805), (1004, 12760), (1160, 11044), (1255, 10208), (1276, 10040), (1595, 8032), (1760, 7279), (2008, 6380), (2320, 5522), (2510, 5104), (2552, 5020), (2761, 4640), (3190, 4016)]このpageの処理時間: 0.004958391189575195 seconds