About the Number

213867780

213867779 ← → 213867781

2進数表記:1100101111110101110100000100

漢数字表記:二億千三百八十六万七千七百八十

素因数分解:

2 2 × 3 1 × 5 1 × 7 1 × 271 1 × 1879 1

素因数の和:2169
約数の個数: 96
約数和(自身を含む): 687267840
約数和(自身を除く): 473400060

約数列:
[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 271, 420, 542, 813, 1084, 1355, 1626, 1879, 1897, 2710, 3252, 3758, 3794, 4065, 5420, 5637, 5691, 7516, 7588, 8130, 9395, 9485, 11274, 11382, 13153, 16260, 18790, 18970, 22548, 22764, 26306, 28185, 28455, 37580, 37940, 39459, 52612, 56370, 56910, 65765, 78918, 112740, 113820, 131530, 157836, 197295, 263060, 394590, 509209, 789180, 1018418, 1527627, 2036836, 2546045, 3055254, 3564463, 5092090, 6110508, 7128926, 7638135, 10184180, 10693389, 14257852, 15276270, 17822315, 21386778, 30552540, 35644630, 42773556, 53466945, 71289260, 106933890, 213867780]

約数ペア:
[(1, 213867780), (2, 106933890), (3, 71289260), (4, 53466945), (5, 42773556), (6, 35644630), (7, 30552540), (10, 21386778), (12, 17822315), (14, 15276270), (15, 14257852), (20, 10693389), (21, 10184180), (28, 7638135), (30, 7128926), (35, 6110508), (42, 5092090), (60, 3564463), (70, 3055254), (84, 2546045), (105, 2036836), (140, 1527627), (210, 1018418), (271, 789180), (420, 509209), (542, 394590), (813, 263060), (1084, 197295), (1355, 157836), (1626, 131530), (1879, 113820), (1897, 112740), (2710, 78918), (3252, 65765), (3758, 56910), (3794, 56370), (4065, 52612), (5420, 39459), (5637, 37940), (5691, 37580), (7516, 28455), (7588, 28185), (8130, 26306), (9395, 22764), (9485, 22548), (11274, 18970), (11382, 18790), (13153, 16260)]

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