About the Number

402552990

402552989 ← → 402552991

2進数表記:10111111111100111100010011110

漢数字表記:四億二百五十五万二千九百九十

素因数分解:

2 1 × 3 4 × 5 1 × 7 1 × 70997 1

素因数の和:71023
約数の個数: 80
約数和(自身を含む): 1237069152
約数和(自身を除く): 834516162

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 5670, 70997, 141994, 212991, 354985, 425982, 496979, 638973, 709970, 993958, 1064955, 1277946, 1490937, 1916919, 2129910, 2484895, 2981874, 3194865, 3833838, 4472811, 4969790, 5750757, 6389730, 7454685, 8945622, 9584595, 11501514, 13418433, 14909370, 19169190, 22364055, 26836866, 28753785, 40255299, 44728110, 57507570, 67092165, 80510598, 134184330, 201276495, 402552990]

約数ペア:
[(1, 402552990), (2, 201276495), (3, 134184330), (5, 80510598), (6, 67092165), (7, 57507570), (9, 44728110), (10, 40255299), (14, 28753785), (15, 26836866), (18, 22364055), (21, 19169190), (27, 14909370), (30, 13418433), (35, 11501514), (42, 9584595), (45, 8945622), (54, 7454685), (63, 6389730), (70, 5750757), (81, 4969790), (90, 4472811), (105, 3833838), (126, 3194865), (135, 2981874), (162, 2484895), (189, 2129910), (210, 1916919), (270, 1490937), (315, 1277946), (378, 1064955), (405, 993958), (567, 709970), (630, 638973), (810, 496979), (945, 425982), (1134, 354985), (1890, 212991), (2835, 141994), (5670, 70997)]

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