About the Number

31320480

31320479 ← → 31320481

2進数表記:1110111011110100110100000

漢数字表記:三千百三十二万四百八十

素因数分解:

2 5 × 3 1 × 5 1 × 23 1 × 2837 1

素因数の和:2878
約数の個数: 96
約数和(自身を含む): 102985344
約数和(自身を除く): 71664864

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 552, 690, 736, 920, 1104, 1380, 1840, 2208, 2760, 2837, 3680, 5520, 5674, 8511, 11040, 11348, 14185, 17022, 22696, 28370, 34044, 42555, 45392, 56740, 65251, 68088, 85110, 90784, 113480, 130502, 136176, 170220, 195753, 226960, 261004, 272352, 326255, 340440, 391506, 453920, 522008, 652510, 680880, 783012, 978765, 1044016, 1305020, 1361760, 1566024, 1957530, 2088032, 2610040, 3132048, 3915060, 5220080, 6264096, 7830120, 10440160, 15660240, 31320480]

約数ペア:
[(1, 31320480), (2, 15660240), (3, 10440160), (4, 7830120), (5, 6264096), (6, 5220080), (8, 3915060), (10, 3132048), (12, 2610040), (15, 2088032), (16, 1957530), (20, 1566024), (23, 1361760), (24, 1305020), (30, 1044016), (32, 978765), (40, 783012), (46, 680880), (48, 652510), (60, 522008), (69, 453920), (80, 391506), (92, 340440), (96, 326255), (115, 272352), (120, 261004), (138, 226960), (160, 195753), (184, 170220), (230, 136176), (240, 130502), (276, 113480), (345, 90784), (368, 85110), (460, 68088), (480, 65251), (552, 56740), (690, 45392), (736, 42555), (920, 34044), (1104, 28370), (1380, 22696), (1840, 17022), (2208, 14185), (2760, 11348), (2837, 11040), (3680, 8511), (5520, 5674)]

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