About the Number

81425400

81425399 ← → 81425401

2進数表記:100110110100111001111111000

漢数字表記:八千百四十二万五千四百

素因数分解:

2 3 × 3 1 × 5 2 × 7 1 × 19387 1

素因数の和:19413
約数の個数: 96
約数和(自身を含む): 288493440
約数和(自身を除く): 207068040

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 19387, 38774, 58161, 77548, 96935, 116322, 135709, 155096, 193870, 232644, 271418, 290805, 387740, 407127, 465288, 484675, 542836, 581610, 678545, 775480, 814254, 969350, 1085672, 1163220, 1357090, 1454025, 1628508, 1938700, 2035635, 2326440, 2714180, 2908050, 3257016, 3392725, 3877400, 4071270, 5428360, 5816100, 6785450, 8142540, 10178175, 11632200, 13570900, 16285080, 20356350, 27141800, 40712700, 81425400]

約数ペア:
[(1, 81425400), (2, 40712700), (3, 27141800), (4, 20356350), (5, 16285080), (6, 13570900), (7, 11632200), (8, 10178175), (10, 8142540), (12, 6785450), (14, 5816100), (15, 5428360), (20, 4071270), (21, 3877400), (24, 3392725), (25, 3257016), (28, 2908050), (30, 2714180), (35, 2326440), (40, 2035635), (42, 1938700), (50, 1628508), (56, 1454025), (60, 1357090), (70, 1163220), (75, 1085672), (84, 969350), (100, 814254), (105, 775480), (120, 678545), (140, 581610), (150, 542836), (168, 484675), (175, 465288), (200, 407127), (210, 387740), (280, 290805), (300, 271418), (350, 232644), (420, 193870), (525, 155096), (600, 135709), (700, 116322), (840, 96935), (1050, 77548), (1400, 58161), (2100, 38774), (4200, 19387)]

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