About the Number
12801789
2進数表記:110000110101011011111101
漢数字表記:千二百八十万千七百八十九
素因数分解:
素因数の和:80
約数の個数: 96
約数和(自身を含む): 26208000
約数和(自身を除く): 13406211
約数列:
[1, 3, 7, 9, 11, 13, 21, 29, 33, 39, 49, 63, 77, 87, 91, 99, 117, 143, 147, 203, 231, 261, 273, 319, 343, 377, 429, 441, 539, 609, 637, 693, 819, 957, 1001, 1029, 1131, 1287, 1421, 1617, 1827, 1911, 2233, 2639, 2871, 3003, 3087, 3393, 3773, 4147, 4263, 4459, 4851, 5733, 6699, 7007, 7917, 9009, 9947, 11319, 12441, 12789, 13377, 15631, 18473, 20097, 21021, 23751, 29029, 29841, 33957, 37323, 40131, 46893, 49049, 55419, 63063, 87087, 89523, 109417, 129311, 140679, 147147, 166257, 203203, 261261, 328251, 387933, 441441, 609609, 984753, 1163799, 1422421, 1828827, 4267263, 12801789]
約数ペア:
[(1, 12801789), (3, 4267263), (7, 1828827), (9, 1422421), (11, 1163799), (13, 984753), (21, 609609), (29, 441441), (33, 387933), (39, 328251), (49, 261261), (63, 203203), (77, 166257), (87, 147147), (91, 140679), (99, 129311), (117, 109417), (143, 89523), (147, 87087), (203, 63063), (231, 55419), (261, 49049), (273, 46893), (319, 40131), (343, 37323), (377, 33957), (429, 29841), (441, 29029), (539, 23751), (609, 21021), (637, 20097), (693, 18473), (819, 15631), (957, 13377), (1001, 12789), (1029, 12441), (1131, 11319), (1287, 9947), (1421, 9009), (1617, 7917), (1827, 7007), (1911, 6699), (2233, 5733), (2639, 4851), (2871, 4459), (3003, 4263), (3087, 4147), (3393, 3773)]このpageの処理時間: 0.005371570587158203 seconds