About the Number

27981288

27981287 ← → 27981289

2進数表記:1101010101111010111101000

漢数字表記:二千七百九十八万千二百八十八

素因数分解:

2 3 × 3 4 × 29 1 × 1489 1

素因数の和:1536
約数の個数: 80
約数和(自身を含む): 81130500
約数和(自身を除く): 53149212

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 29, 36, 54, 58, 72, 81, 87, 108, 116, 162, 174, 216, 232, 261, 324, 348, 522, 648, 696, 783, 1044, 1489, 1566, 2088, 2349, 2978, 3132, 4467, 4698, 5956, 6264, 8934, 9396, 11912, 13401, 17868, 18792, 26802, 35736, 40203, 43181, 53604, 80406, 86362, 107208, 120609, 129543, 160812, 172724, 241218, 259086, 321624, 345448, 388629, 482436, 518172, 777258, 964872, 1036344, 1165887, 1554516, 2331774, 3109032, 3497661, 4663548, 6995322, 9327096, 13990644, 27981288]

約数ペア:
[(1, 27981288), (2, 13990644), (3, 9327096), (4, 6995322), (6, 4663548), (8, 3497661), (9, 3109032), (12, 2331774), (18, 1554516), (24, 1165887), (27, 1036344), (29, 964872), (36, 777258), (54, 518172), (58, 482436), (72, 388629), (81, 345448), (87, 321624), (108, 259086), (116, 241218), (162, 172724), (174, 160812), (216, 129543), (232, 120609), (261, 107208), (324, 86362), (348, 80406), (522, 53604), (648, 43181), (696, 40203), (783, 35736), (1044, 26802), (1489, 18792), (1566, 17868), (2088, 13401), (2349, 11912), (2978, 9396), (3132, 8934), (4467, 6264), (4698, 5956)]

このpageの処理時間: 0.007959365844726562 seconds