About the Number

28991242

28991241 ← → 28991243

2進数表記:1101110100101111100001010

漢数字表記:二千八百九十九万千二百四十二

素因数分解:

2 1 × 7 2 × 29 1 × 101 2

素因数の和:247
約数の個数: 36
約数和(自身を含む): 52854390
約数和(自身を除く): 23863148

約数列:
[1, 2, 7, 14, 29, 49, 58, 98, 101, 202, 203, 406, 707, 1414, 1421, 2842, 2929, 4949, 5858, 9898, 10201, 20402, 20503, 41006, 71407, 142814, 143521, 287042, 295829, 499849, 591658, 999698, 2070803, 4141606, 14495621, 28991242]

約数ペア:
[(1, 28991242), (2, 14495621), (7, 4141606), (14, 2070803), (29, 999698), (49, 591658), (58, 499849), (98, 295829), (101, 287042), (202, 143521), (203, 142814), (406, 71407), (707, 41006), (1414, 20503), (1421, 20402), (2842, 10201), (2929, 9898), (4949, 5858)]

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