About the Number

129171728

129171727 ← → 129171729

2進数表記:111101100110000000100010000

漢数字表記:一億二千九百十七万千七百二十八

素因数分解:

2 4 × 7 1 × 19 1 × 101 1 × 601 1

素因数の和:736
約数の個数: 80
約数和(自身を含む): 304563840
約数和(自身を除く): 175392112

約数列:
[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 101, 112, 133, 152, 202, 266, 304, 404, 532, 601, 707, 808, 1064, 1202, 1414, 1616, 1919, 2128, 2404, 2828, 3838, 4207, 4808, 5656, 7676, 8414, 9616, 11312, 11419, 13433, 15352, 16828, 22838, 26866, 30704, 33656, 45676, 53732, 60701, 67312, 79933, 91352, 107464, 121402, 159866, 182704, 214928, 242804, 319732, 424907, 485608, 639464, 849814, 971216, 1153319, 1278928, 1699628, 2306638, 3399256, 4613276, 6798512, 8073233, 9226552, 16146466, 18453104, 32292932, 64585864, 129171728]

約数ペア:
[(1, 129171728), (2, 64585864), (4, 32292932), (7, 18453104), (8, 16146466), (14, 9226552), (16, 8073233), (19, 6798512), (28, 4613276), (38, 3399256), (56, 2306638), (76, 1699628), (101, 1278928), (112, 1153319), (133, 971216), (152, 849814), (202, 639464), (266, 485608), (304, 424907), (404, 319732), (532, 242804), (601, 214928), (707, 182704), (808, 159866), (1064, 121402), (1202, 107464), (1414, 91352), (1616, 79933), (1919, 67312), (2128, 60701), (2404, 53732), (2828, 45676), (3838, 33656), (4207, 30704), (4808, 26866), (5656, 22838), (7676, 16828), (8414, 15352), (9616, 13433), (11312, 11419)]

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