About the Number

129928140

129928139 ← → 129928141

2進数表記:111101111101000101111001100

漢数字表記:一億二千九百九十二万八千百四十

素因数分解:

2 2 × 3 2 × 5 1 × 79 1 × 9137 1

素因数の和:9231
約数の個数: 72
約数和(自身を含む): 399147840
約数和(自身を除く): 269219700

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1580, 2370, 2844, 3555, 4740, 7110, 9137, 14220, 18274, 27411, 36548, 45685, 54822, 82233, 91370, 109644, 137055, 164466, 182740, 274110, 328932, 411165, 548220, 721823, 822330, 1443646, 1644660, 2165469, 2887292, 3609115, 4330938, 6496407, 7218230, 8661876, 10827345, 12992814, 14436460, 21654690, 25985628, 32482035, 43309380, 64964070, 129928140]

約数ペア:
[(1, 129928140), (2, 64964070), (3, 43309380), (4, 32482035), (5, 25985628), (6, 21654690), (9, 14436460), (10, 12992814), (12, 10827345), (15, 8661876), (18, 7218230), (20, 6496407), (30, 4330938), (36, 3609115), (45, 2887292), (60, 2165469), (79, 1644660), (90, 1443646), (158, 822330), (180, 721823), (237, 548220), (316, 411165), (395, 328932), (474, 274110), (711, 182740), (790, 164466), (948, 137055), (1185, 109644), (1422, 91370), (1580, 82233), (2370, 54822), (2844, 45685), (3555, 36548), (4740, 27411), (7110, 18274), (9137, 14220)]

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