About the Number

102990105

102990104 ← → 102990106

2進数表記:110001000111000000100011001

漢数字表記:一億二百九十九万百五

素因数分解:

3 2 × 5 1 × 59 1 × 38791 1

素因数の和:38861
約数の個数: 24
約数和(自身を含む): 181546560
約数和(自身を除く): 78556455

約数列:
[1, 3, 5, 9, 15, 45, 59, 177, 295, 531, 885, 2655, 38791, 116373, 193955, 349119, 581865, 1745595, 2288669, 6866007, 11443345, 20598021, 34330035, 102990105]

約数ペア:
[(1, 102990105), (3, 34330035), (5, 20598021), (9, 11443345), (15, 6866007), (45, 2288669), (59, 1745595), (177, 581865), (295, 349119), (531, 193955), (885, 116373), (2655, 38791)]

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