About the Number

1640731690

1640731689 ← → 1640731691

2進数表記:1100001110010111001010000101010

漢数字表記:十六億四千七十三万千六百九十

素因数分解:

2 1 × 5 1 × 13 1 × 257 1 × 49109 1

素因数の和:49386
約数の個数: 32
約数和(自身を含む): 3192935760
約数和(自身を除く): 1552204070

約数列:
[1, 2, 5, 10, 13, 26, 65, 130, 257, 514, 1285, 2570, 3341, 6682, 16705, 33410, 49109, 98218, 245545, 491090, 638417, 1276834, 3192085, 6384170, 12621013, 25242026, 63105065, 126210130, 164073169, 328146338, 820365845, 1640731690]

約数ペア:
[(1, 1640731690), (2, 820365845), (5, 328146338), (10, 164073169), (13, 126210130), (26, 63105065), (65, 25242026), (130, 12621013), (257, 6384170), (514, 3192085), (1285, 1276834), (2570, 638417), (3341, 491090), (6682, 245545), (16705, 98218), (33410, 49109)]

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