About the Number

128831248

128831247 ← → 128831249

2進数表記:111101011011100111100010000

漢数字表記:一億二千八百八十三万千二百四十八

素因数分解:

2 4 × 7 1 × 13 1 × 19 1 × 4657 1

素因数の和:4704
約数の個数: 80
約数和(自身を含む): 323451520
約数和(自身を除く): 194620272

約数列:
[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 728, 988, 1064, 1456, 1729, 1976, 2128, 3458, 3952, 4657, 6916, 9314, 13832, 18628, 27664, 32599, 37256, 60541, 65198, 74512, 88483, 121082, 130396, 176966, 242164, 260792, 353932, 423787, 484328, 521584, 619381, 707864, 847574, 968656, 1150279, 1238762, 1415728, 1695148, 2300558, 2477524, 3390296, 4601116, 4955048, 6780592, 8051953, 9202232, 9910096, 16103906, 18404464, 32207812, 64415624, 128831248]

約数ペア:
[(1, 128831248), (2, 64415624), (4, 32207812), (7, 18404464), (8, 16103906), (13, 9910096), (14, 9202232), (16, 8051953), (19, 6780592), (26, 4955048), (28, 4601116), (38, 3390296), (52, 2477524), (56, 2300558), (76, 1695148), (91, 1415728), (104, 1238762), (112, 1150279), (133, 968656), (152, 847574), (182, 707864), (208, 619381), (247, 521584), (266, 484328), (304, 423787), (364, 353932), (494, 260792), (532, 242164), (728, 176966), (988, 130396), (1064, 121082), (1456, 88483), (1729, 74512), (1976, 65198), (2128, 60541), (3458, 37256), (3952, 32599), (4657, 27664), (6916, 18628), (9314, 13832)]

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