About the Number

206809928

206809927 ← → 206809929

2進数表記:1100010100111010101101001000

漢数字表記:二億六百八十万九千九百二十八

素因数分解:

2 3 × 13 1 × 23 1 × 31 1 × 2789 1

素因数の和:2862
約数の個数: 64
約数和(自身を含む): 449971200
約数和(自身を除く): 243161272

約数列:
[1, 2, 4, 8, 13, 23, 26, 31, 46, 52, 62, 92, 104, 124, 184, 248, 299, 403, 598, 713, 806, 1196, 1426, 1612, 2392, 2789, 2852, 3224, 5578, 5704, 9269, 11156, 18538, 22312, 36257, 37076, 64147, 72514, 74152, 86459, 128294, 145028, 172918, 256588, 290056, 345836, 513176, 691672, 833911, 1123967, 1667822, 1988557, 2247934, 3335644, 3977114, 4495868, 6671288, 7954228, 8991736, 15908456, 25851241, 51702482, 103404964, 206809928]

約数ペア:
[(1, 206809928), (2, 103404964), (4, 51702482), (8, 25851241), (13, 15908456), (23, 8991736), (26, 7954228), (31, 6671288), (46, 4495868), (52, 3977114), (62, 3335644), (92, 2247934), (104, 1988557), (124, 1667822), (184, 1123967), (248, 833911), (299, 691672), (403, 513176), (598, 345836), (713, 290056), (806, 256588), (1196, 172918), (1426, 145028), (1612, 128294), (2392, 86459), (2789, 74152), (2852, 72514), (3224, 64147), (5578, 37076), (5704, 36257), (9269, 22312), (11156, 18538)]

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