About the Number

681676740

681676739 ← → 681676741

2進数表記:101000101000011000111111000100

漢数字表記:六億八千百六十七万六千七百四十

素因数分解:

2 2 × 3 2 × 5 1 × 1399 1 × 2707 1

素因数の和:4121
約数の個数: 72
約数和(自身を含む): 2069995200
約数和(自身を除く): 1388318460

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1399, 2707, 2798, 4197, 5414, 5596, 6995, 8121, 8394, 10828, 12591, 13535, 13990, 16242, 16788, 20985, 24363, 25182, 27070, 27980, 32484, 40605, 41970, 48726, 50364, 54140, 62955, 81210, 83940, 97452, 121815, 125910, 162420, 243630, 251820, 487260, 3787093, 7574186, 11361279, 15148372, 18935465, 22722558, 34083837, 37870930, 45445116, 56806395, 68167674, 75741860, 113612790, 136335348, 170419185, 227225580, 340838370, 681676740]

約数ペア:
[(1, 681676740), (2, 340838370), (3, 227225580), (4, 170419185), (5, 136335348), (6, 113612790), (9, 75741860), (10, 68167674), (12, 56806395), (15, 45445116), (18, 37870930), (20, 34083837), (30, 22722558), (36, 18935465), (45, 15148372), (60, 11361279), (90, 7574186), (180, 3787093), (1399, 487260), (2707, 251820), (2798, 243630), (4197, 162420), (5414, 125910), (5596, 121815), (6995, 97452), (8121, 83940), (8394, 81210), (10828, 62955), (12591, 54140), (13535, 50364), (13990, 48726), (16242, 41970), (16788, 40605), (20985, 32484), (24363, 27980), (25182, 27070)]

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