About the Number

21641280

21641279 ← → 21641281

2進数表記:1010010100011100001000000

漢数字表記:二千百六十四万千二百八十

素因数分解:

2 6 × 3 1 × 5 1 × 22543 1

素因数の和:22563
約数の個数: 56
約数和(自身を含む): 68714112
約数和(自身を除く): 47072832

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 22543, 45086, 67629, 90172, 112715, 135258, 180344, 225430, 270516, 338145, 360688, 450860, 541032, 676290, 721376, 901720, 1082064, 1352580, 1442752, 1803440, 2164128, 2705160, 3606880, 4328256, 5410320, 7213760, 10820640, 21641280]

約数ペア:
[(1, 21641280), (2, 10820640), (3, 7213760), (4, 5410320), (5, 4328256), (6, 3606880), (8, 2705160), (10, 2164128), (12, 1803440), (15, 1442752), (16, 1352580), (20, 1082064), (24, 901720), (30, 721376), (32, 676290), (40, 541032), (48, 450860), (60, 360688), (64, 338145), (80, 270516), (96, 225430), (120, 180344), (160, 135258), (192, 112715), (240, 90172), (320, 67629), (480, 45086), (960, 22543)]

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