About the Number

128972928

128972927 ← → 128972929

2進数表記:111101011111111100010000000

漢数字表記:一億二千八百九十七万二千九百二十八

素因数分解:

2 7 × 3 1 × 7 1 × 47981 1

素因数の和:48005
約数の個数: 64
約数和(自身を含む): 391533120
約数和(自身を除く): 262560192

約数列:
[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 336, 384, 448, 672, 896, 1344, 2688, 47981, 95962, 143943, 191924, 287886, 335867, 383848, 575772, 671734, 767696, 1007601, 1151544, 1343468, 1535392, 2015202, 2303088, 2686936, 3070784, 4030404, 4606176, 5373872, 6141568, 8060808, 9212352, 10747744, 16121616, 18424704, 21495488, 32243232, 42990976, 64486464, 128972928]

約数ペア:
[(1, 128972928), (2, 64486464), (3, 42990976), (4, 32243232), (6, 21495488), (7, 18424704), (8, 16121616), (12, 10747744), (14, 9212352), (16, 8060808), (21, 6141568), (24, 5373872), (28, 4606176), (32, 4030404), (42, 3070784), (48, 2686936), (56, 2303088), (64, 2015202), (84, 1535392), (96, 1343468), (112, 1151544), (128, 1007601), (168, 767696), (192, 671734), (224, 575772), (336, 383848), (384, 335867), (448, 287886), (672, 191924), (896, 143943), (1344, 95962), (2688, 47981)]

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