About the Number

251172090

251172089 ← → 251172091

2進数表記:1110111110001001010011111010

漢数字表記:二億五千百十七万二千九十

素因数分解:

2 1 × 3 5 × 5 1 × 13 1 × 7951 1

素因数の和:7986
約数の個数: 96
約数和(自身を含む): 729421056
約数和(自身を除く): 478248966

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 243, 270, 351, 390, 405, 486, 585, 702, 810, 1053, 1170, 1215, 1755, 2106, 2430, 3159, 3510, 5265, 6318, 7951, 10530, 15795, 15902, 23853, 31590, 39755, 47706, 71559, 79510, 103363, 119265, 143118, 206726, 214677, 238530, 310089, 357795, 429354, 516815, 620178, 644031, 715590, 930267, 1033630, 1073385, 1288062, 1550445, 1860534, 1932093, 2146770, 2790801, 3100890, 3220155, 3864186, 4651335, 5581602, 6440310, 8372403, 9302670, 9660465, 13954005, 16744806, 19320930, 25117209, 27908010, 41862015, 50234418, 83724030, 125586045, 251172090]

約数ペア:
[(1, 251172090), (2, 125586045), (3, 83724030), (5, 50234418), (6, 41862015), (9, 27908010), (10, 25117209), (13, 19320930), (15, 16744806), (18, 13954005), (26, 9660465), (27, 9302670), (30, 8372403), (39, 6440310), (45, 5581602), (54, 4651335), (65, 3864186), (78, 3220155), (81, 3100890), (90, 2790801), (117, 2146770), (130, 1932093), (135, 1860534), (162, 1550445), (195, 1288062), (234, 1073385), (243, 1033630), (270, 930267), (351, 715590), (390, 644031), (405, 620178), (486, 516815), (585, 429354), (702, 357795), (810, 310089), (1053, 238530), (1170, 214677), (1215, 206726), (1755, 143118), (2106, 119265), (2430, 103363), (3159, 79510), (3510, 71559), (5265, 47706), (6318, 39755), (7951, 31590), (10530, 23853), (15795, 15902)]

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