About the Number

1981831680

1981831679 ← → 1981831681

2進数表記:1110110001000000101101000000000

漢数字表記:十九億八千百八十三万千六百八十

素因数分解:

2 9 × 3 2 × 5 1 × 86017 1

素因数の和:86046
約数の個数: 120
約数和(自身を含む): 6863720292
約数和(自身を除く): 4881888612

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 86017, 172034, 258051, 344068, 430085, 516102, 688136, 774153, 860170, 1032204, 1290255, 1376272, 1548306, 1720340, 2064408, 2580510, 2752544, 3096612, 3440680, 3870765, 4128816, 5161020, 5505088, 6193224, 6881360, 7741530, 8257632, 10322040, 11010176, 12386448, 13762720, 15483060, 16515264, 20644080, 22020352, 24772896, 27525440, 30966120, 33030528, 41288160, 44040704, 49545792, 55050880, 61932240, 66061056, 82576320, 99091584, 110101760, 123864480, 132122112, 165152640, 198183168, 220203520, 247728960, 330305280, 396366336, 495457920, 660610560, 990915840, 1981831680]

約数ペア:
[(1, 1981831680), (2, 990915840), (3, 660610560), (4, 495457920), (5, 396366336), (6, 330305280), (8, 247728960), (9, 220203520), (10, 198183168), (12, 165152640), (15, 132122112), (16, 123864480), (18, 110101760), (20, 99091584), (24, 82576320), (30, 66061056), (32, 61932240), (36, 55050880), (40, 49545792), (45, 44040704), (48, 41288160), (60, 33030528), (64, 30966120), (72, 27525440), (80, 24772896), (90, 22020352), (96, 20644080), (120, 16515264), (128, 15483060), (144, 13762720), (160, 12386448), (180, 11010176), (192, 10322040), (240, 8257632), (256, 7741530), (288, 6881360), (320, 6193224), (360, 5505088), (384, 5161020), (480, 4128816), (512, 3870765), (576, 3440680), (640, 3096612), (720, 2752544), (768, 2580510), (960, 2064408), (1152, 1720340), (1280, 1548306), (1440, 1376272), (1536, 1290255), (1920, 1032204), (2304, 860170), (2560, 774153), (2880, 688136), (3840, 516102), (4608, 430085), (5760, 344068), (7680, 258051), (11520, 172034), (23040, 86017)]

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