About the Number

1288403220

1288403219 ← → 1288403221

2進数表記:1001100110010110111100100010100

漢数字表記:十二億八千八百四十万三千二百二十

素因数分解:

2 2 × 3 1 × 5 1 × 13 1 × 1019 1 × 1621 1

素因数の和:2665
約数の個数: 96
約数和(自身を含む): 3891242880
約数和(自身を除く): 2602839660

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1019, 1621, 2038, 3057, 3242, 4076, 4863, 5095, 6114, 6484, 8105, 9726, 10190, 12228, 13247, 15285, 16210, 19452, 20380, 21073, 24315, 26494, 30570, 32420, 39741, 42146, 48630, 52988, 61140, 63219, 66235, 79482, 84292, 97260, 105365, 126438, 132470, 158964, 198705, 210730, 252876, 264940, 316095, 397410, 421460, 632190, 794820, 1264380, 1651799, 3303598, 4955397, 6607196, 8258995, 9910794, 16517990, 19821588, 21473387, 24776985, 33035980, 42946774, 49553970, 64420161, 85893548, 99107940, 107366935, 128840322, 214733870, 257680644, 322100805, 429467740, 644201610, 1288403220]

約数ペア:
[(1, 1288403220), (2, 644201610), (3, 429467740), (4, 322100805), (5, 257680644), (6, 214733870), (10, 128840322), (12, 107366935), (13, 99107940), (15, 85893548), (20, 64420161), (26, 49553970), (30, 42946774), (39, 33035980), (52, 24776985), (60, 21473387), (65, 19821588), (78, 16517990), (130, 9910794), (156, 8258995), (195, 6607196), (260, 4955397), (390, 3303598), (780, 1651799), (1019, 1264380), (1621, 794820), (2038, 632190), (3057, 421460), (3242, 397410), (4076, 316095), (4863, 264940), (5095, 252876), (6114, 210730), (6484, 198705), (8105, 158964), (9726, 132470), (10190, 126438), (12228, 105365), (13247, 97260), (15285, 84292), (16210, 79482), (19452, 66235), (20380, 63219), (21073, 61140), (24315, 52988), (26494, 48630), (30570, 42146), (32420, 39741)]

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