About the Number

129772720

129772719 ← → 129772721

2進数表記:111101111000010110010110000

漢数字表記:一億二千九百七十七万二千七百二十

素因数分解:

2 4 × 5 1 × 7 1 × 11 1 × 21067 1

素因数の和:21098
約数の個数: 80
約数和(自身を含む): 376190208
約数和(自身を除く): 246417488

約数列:
[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 21067, 42134, 84268, 105335, 147469, 168536, 210670, 231737, 294938, 337072, 421340, 463474, 589876, 737345, 842680, 926948, 1158685, 1179752, 1474690, 1622159, 1685360, 1853896, 2317370, 2359504, 2949380, 3244318, 3707792, 4634740, 5898760, 6488636, 8110795, 9269480, 11797520, 12977272, 16221590, 18538960, 25954544, 32443180, 64886360, 129772720]

約数ペア:
[(1, 129772720), (2, 64886360), (4, 32443180), (5, 25954544), (7, 18538960), (8, 16221590), (10, 12977272), (11, 11797520), (14, 9269480), (16, 8110795), (20, 6488636), (22, 5898760), (28, 4634740), (35, 3707792), (40, 3244318), (44, 2949380), (55, 2359504), (56, 2317370), (70, 1853896), (77, 1685360), (80, 1622159), (88, 1474690), (110, 1179752), (112, 1158685), (140, 926948), (154, 842680), (176, 737345), (220, 589876), (280, 463474), (308, 421340), (385, 337072), (440, 294938), (560, 231737), (616, 210670), (770, 168536), (880, 147469), (1232, 105335), (1540, 84268), (3080, 42134), (6160, 21067)]

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