About the Number

212991080

212991079 ← → 212991081

2進数表記:1100101100011111110001101000

漢数字表記:二億千二百九十九万千八十

素因数分解:

2 3 × 5 1 × 29 1 × 31 1 × 5923 1

素因数の和:5994
約数の個数: 64
約数和(自身を含む): 511833600
約数和(自身を除く): 298842520

約数列:
[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 3596, 4495, 5923, 7192, 8990, 11846, 17980, 23692, 29615, 35960, 47384, 59230, 118460, 171767, 183613, 236920, 343534, 367226, 687068, 734452, 858835, 918065, 1374136, 1468904, 1717670, 1836130, 3435340, 3672260, 5324777, 6870680, 7344520, 10649554, 21299108, 26623885, 42598216, 53247770, 106495540, 212991080]

約数ペア:
[(1, 212991080), (2, 106495540), (4, 53247770), (5, 42598216), (8, 26623885), (10, 21299108), (20, 10649554), (29, 7344520), (31, 6870680), (40, 5324777), (58, 3672260), (62, 3435340), (116, 1836130), (124, 1717670), (145, 1468904), (155, 1374136), (232, 918065), (248, 858835), (290, 734452), (310, 687068), (580, 367226), (620, 343534), (899, 236920), (1160, 183613), (1240, 171767), (1798, 118460), (3596, 59230), (4495, 47384), (5923, 35960), (7192, 29615), (8990, 23692), (11846, 17980)]

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