About the Number

81355290

81355289 ← → 81355291

2進数表記:100110110010110001000011010

漢数字表記:八千百三十五万五千二百九十

素因数分解:

2 1 × 3 1 × 5 1 × 193 1 × 14051 1

素因数の和:14254
約数の個数: 32
約数和(自身を含む): 196278336
約数和(自身を除く): 114923046

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 193, 386, 579, 965, 1158, 1930, 2895, 5790, 14051, 28102, 42153, 70255, 84306, 140510, 210765, 421530, 2711843, 5423686, 8135529, 13559215, 16271058, 27118430, 40677645, 81355290]

約数ペア:
[(1, 81355290), (2, 40677645), (3, 27118430), (5, 16271058), (6, 13559215), (10, 8135529), (15, 5423686), (30, 2711843), (193, 421530), (386, 210765), (579, 140510), (965, 84306), (1158, 70255), (1930, 42153), (2895, 28102), (5790, 14051)]

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