About the Number

81241290

81241289 ← → 81241291

2進数表記:100110101111010010011001010

漢数字表記:八千百二十四万千二百九十

素因数分解:

2 1 × 3 2 × 5 1 × 13 1 × 23 1 × 3019 1

素因数の和:3068
約数の個数: 96
約数和(自身を含む): 237444480
約数和(自身を除く): 156203190

約数列:
[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 23, 26, 30, 39, 45, 46, 65, 69, 78, 90, 115, 117, 130, 138, 195, 207, 230, 234, 299, 345, 390, 414, 585, 598, 690, 897, 1035, 1170, 1495, 1794, 2070, 2691, 2990, 3019, 4485, 5382, 6038, 8970, 9057, 13455, 15095, 18114, 26910, 27171, 30190, 39247, 45285, 54342, 69437, 78494, 90570, 117741, 135855, 138874, 196235, 208311, 235482, 271710, 347185, 353223, 392470, 416622, 588705, 624933, 694370, 706446, 902681, 1041555, 1177410, 1249866, 1766115, 1805362, 2083110, 2708043, 3124665, 3532230, 4513405, 5416086, 6249330, 8124129, 9026810, 13540215, 16248258, 27080430, 40620645, 81241290]

約数ペア:
[(1, 81241290), (2, 40620645), (3, 27080430), (5, 16248258), (6, 13540215), (9, 9026810), (10, 8124129), (13, 6249330), (15, 5416086), (18, 4513405), (23, 3532230), (26, 3124665), (30, 2708043), (39, 2083110), (45, 1805362), (46, 1766115), (65, 1249866), (69, 1177410), (78, 1041555), (90, 902681), (115, 706446), (117, 694370), (130, 624933), (138, 588705), (195, 416622), (207, 392470), (230, 353223), (234, 347185), (299, 271710), (345, 235482), (390, 208311), (414, 196235), (585, 138874), (598, 135855), (690, 117741), (897, 90570), (1035, 78494), (1170, 69437), (1495, 54342), (1794, 45285), (2070, 39247), (2691, 30190), (2990, 27171), (3019, 26910), (4485, 18114), (5382, 15095), (6038, 13455), (8970, 9057)]

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