About the Number

121457728

121457727 ← → 121457729

2進数表記:111001111010100110001000000

漢数字表記:一億二千百四十五万七千七百二十八

素因数分解:

2 6 × 7 1 × 19 2 × 751 1

素因数の和:808
約数の個数: 84
約数和(自身を含む): 291096192
約数和(自身を除く): 169638464

約数列:
[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 133, 152, 224, 266, 304, 361, 448, 532, 608, 722, 751, 1064, 1216, 1444, 1502, 2128, 2527, 2888, 3004, 4256, 5054, 5257, 5776, 6008, 8512, 10108, 10514, 11552, 12016, 14269, 20216, 21028, 23104, 24032, 28538, 40432, 42056, 48064, 57076, 80864, 84112, 99883, 114152, 161728, 168224, 199766, 228304, 271111, 336448, 399532, 456608, 542222, 799064, 913216, 1084444, 1598128, 1897777, 2168888, 3196256, 3795554, 4337776, 6392512, 7591108, 8675552, 15182216, 17351104, 30364432, 60728864, 121457728]

約数ペア:
[(1, 121457728), (2, 60728864), (4, 30364432), (7, 17351104), (8, 15182216), (14, 8675552), (16, 7591108), (19, 6392512), (28, 4337776), (32, 3795554), (38, 3196256), (56, 2168888), (64, 1897777), (76, 1598128), (112, 1084444), (133, 913216), (152, 799064), (224, 542222), (266, 456608), (304, 399532), (361, 336448), (448, 271111), (532, 228304), (608, 199766), (722, 168224), (751, 161728), (1064, 114152), (1216, 99883), (1444, 84112), (1502, 80864), (2128, 57076), (2527, 48064), (2888, 42056), (3004, 40432), (4256, 28538), (5054, 24032), (5257, 23104), (5776, 21028), (6008, 20216), (8512, 14269), (10108, 12016), (10514, 11552)]

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