About the Number

28555720

28555719 ← → 28555721

2進数表記:1101100111011100111001000

漢数字表記:二千八百五十五万五千七百二十

素因数分解:

2 3 × 5 1 × 29 1 × 103 1 × 239 1

素因数の和:382
約数の個数: 64
約数和(自身を含む): 67392000
約数和(自身を除く): 38836280

約数列:
[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 103, 116, 145, 206, 232, 239, 290, 412, 478, 515, 580, 824, 956, 1030, 1160, 1195, 1912, 2060, 2390, 2987, 4120, 4780, 5974, 6931, 9560, 11948, 13862, 14935, 23896, 24617, 27724, 29870, 34655, 49234, 55448, 59740, 69310, 98468, 119480, 123085, 138620, 196936, 246170, 277240, 492340, 713893, 984680, 1427786, 2855572, 3569465, 5711144, 7138930, 14277860, 28555720]

約数ペア:
[(1, 28555720), (2, 14277860), (4, 7138930), (5, 5711144), (8, 3569465), (10, 2855572), (20, 1427786), (29, 984680), (40, 713893), (58, 492340), (103, 277240), (116, 246170), (145, 196936), (206, 138620), (232, 123085), (239, 119480), (290, 98468), (412, 69310), (478, 59740), (515, 55448), (580, 49234), (824, 34655), (956, 29870), (1030, 27724), (1160, 24617), (1195, 23896), (1912, 14935), (2060, 13862), (2390, 11948), (2987, 9560), (4120, 6931), (4780, 5974)]

このpageの処理時間: 0.003677845001220703 seconds