About the Number

2013121680

2013121679 ← → 2013121681

2進数表記:1110111111111011100110010010000

漢数字表記:二十億千三百十二万千六百八十

素因数分解:

2 4 × 3 1 × 5 1 × 389 1 × 21563 1

素因数の和:21968
約数の個数: 80
約数和(自身を含む): 6257010240
約数和(自身を除く): 4243888560

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 389, 778, 1167, 1556, 1945, 2334, 3112, 3890, 4668, 5835, 6224, 7780, 9336, 11670, 15560, 18672, 21563, 23340, 31120, 43126, 46680, 64689, 86252, 93360, 107815, 129378, 172504, 215630, 258756, 323445, 345008, 431260, 517512, 646890, 862520, 1035024, 1293780, 1725040, 2587560, 5175120, 8388007, 16776014, 25164021, 33552028, 41940035, 50328042, 67104056, 83880070, 100656084, 125820105, 134208112, 167760140, 201312168, 251640210, 335520280, 402624336, 503280420, 671040560, 1006560840, 2013121680]

約数ペア:
[(1, 2013121680), (2, 1006560840), (3, 671040560), (4, 503280420), (5, 402624336), (6, 335520280), (8, 251640210), (10, 201312168), (12, 167760140), (15, 134208112), (16, 125820105), (20, 100656084), (24, 83880070), (30, 67104056), (40, 50328042), (48, 41940035), (60, 33552028), (80, 25164021), (120, 16776014), (240, 8388007), (389, 5175120), (778, 2587560), (1167, 1725040), (1556, 1293780), (1945, 1035024), (2334, 862520), (3112, 646890), (3890, 517512), (4668, 431260), (5835, 345008), (6224, 323445), (7780, 258756), (9336, 215630), (11670, 172504), (15560, 129378), (18672, 107815), (21563, 93360), (23340, 86252), (31120, 64689), (43126, 46680)]

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