About the Number

31728944

31728943 ← → 31728945

2進数表記:1111001000010010100110000

漢数字表記:三千百七十二万八千九百四十四

素因数分解:

2 4 × 13 1 × 103 1 × 1481 1

素因数の和:1605
約数の個数: 40
約数和(自身を含む): 66891552
約数和(自身を除く): 35162608

約数列:
[1, 2, 4, 8, 13, 16, 26, 52, 103, 104, 206, 208, 412, 824, 1339, 1481, 1648, 2678, 2962, 5356, 5924, 10712, 11848, 19253, 21424, 23696, 38506, 77012, 152543, 154024, 305086, 308048, 610172, 1220344, 1983059, 2440688, 3966118, 7932236, 15864472, 31728944]

約数ペア:
[(1, 31728944), (2, 15864472), (4, 7932236), (8, 3966118), (13, 2440688), (16, 1983059), (26, 1220344), (52, 610172), (103, 308048), (104, 305086), (206, 154024), (208, 152543), (412, 77012), (824, 38506), (1339, 23696), (1481, 21424), (1648, 19253), (2678, 11848), (2962, 10712), (5356, 5924)]

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