About the Number

129606490

129606489 ← → 129606491

2進数表記:111101110011010001101011010

漢数字表記:一億二千九百六十万六千四百九十

素因数分解:

2 1 × 5 1 × 13 1 × 996973 1

素因数の和:996993
約数の個数: 16
約数和(自身を含む): 251237448
約数和(自身を除く): 121630958

約数列:
[1, 2, 5, 10, 13, 26, 65, 130, 996973, 1993946, 4984865, 9969730, 12960649, 25921298, 64803245, 129606490]

約数ペア:
[(1, 129606490), (2, 64803245), (5, 25921298), (10, 12960649), (13, 9969730), (26, 4984865), (65, 1993946), (130, 996973)]

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