About the Number

128880960

128880959 ← → 128880961

2進数表記:111101011101001000101000000

漢数字表記:一億二千八百八十八万九百六十

素因数分解:

2 6 × 3 1 × 5 1 × 13 1 × 23 1 × 449 1

素因数の和:505
約数の個数: 224
約数和(自身を含む): 460857600
約数和(自身を除く): 331976640

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 23, 24, 26, 30, 32, 39, 40, 46, 48, 52, 60, 64, 65, 69, 78, 80, 92, 96, 104, 115, 120, 130, 138, 156, 160, 184, 192, 195, 208, 230, 240, 260, 276, 299, 312, 320, 345, 368, 390, 416, 449, 460, 480, 520, 552, 598, 624, 690, 736, 780, 832, 897, 898, 920, 960, 1040, 1104, 1196, 1248, 1347, 1380, 1472, 1495, 1560, 1794, 1796, 1840, 2080, 2208, 2245, 2392, 2496, 2694, 2760, 2990, 3120, 3588, 3592, 3680, 4160, 4416, 4485, 4490, 4784, 5388, 5520, 5837, 5980, 6240, 6735, 7176, 7184, 7360, 8970, 8980, 9568, 10327, 10776, 11040, 11674, 11960, 12480, 13470, 14352, 14368, 17511, 17940, 17960, 19136, 20654, 21552, 22080, 23348, 23920, 26940, 28704, 28736, 29185, 30981, 35022, 35880, 35920, 41308, 43104, 46696, 47840, 51635, 53880, 57408, 58370, 61962, 70044, 71760, 71840, 82616, 86208, 87555, 93392, 95680, 103270, 107760, 116740, 123924, 134251, 140088, 143520, 143680, 154905, 165232, 175110, 186784, 206540, 215520, 233480, 247848, 268502, 280176, 287040, 309810, 330464, 350220, 373568, 402753, 413080, 431040, 466960, 495696, 537004, 560352, 619620, 660928, 671255, 700440, 805506, 826160, 933920, 991392, 1074008, 1120704, 1239240, 1342510, 1400880, 1611012, 1652320, 1867840, 1982784, 2013765, 2148016, 2478480, 2685020, 2801760, 3222024, 3304640, 4027530, 4296032, 4956960, 5370040, 5603520, 6444048, 8055060, 8592064, 9913920, 10740080, 12888096, 16110120, 21480160, 25776192, 32220240, 42960320, 64440480, 128880960]

約数ペア:
[(1, 128880960), (2, 64440480), (3, 42960320), (4, 32220240), (5, 25776192), (6, 21480160), (8, 16110120), (10, 12888096), (12, 10740080), (13, 9913920), (15, 8592064), (16, 8055060), (20, 6444048), (23, 5603520), (24, 5370040), (26, 4956960), (30, 4296032), (32, 4027530), (39, 3304640), (40, 3222024), (46, 2801760), (48, 2685020), (52, 2478480), (60, 2148016), (64, 2013765), (65, 1982784), (69, 1867840), (78, 1652320), (80, 1611012), (92, 1400880), (96, 1342510), (104, 1239240), (115, 1120704), (120, 1074008), (130, 991392), (138, 933920), (156, 826160), (160, 805506), (184, 700440), (192, 671255), (195, 660928), (208, 619620), (230, 560352), (240, 537004), (260, 495696), (276, 466960), (299, 431040), (312, 413080), (320, 402753), (345, 373568), (368, 350220), (390, 330464), (416, 309810), (449, 287040), (460, 280176), (480, 268502), (520, 247848), (552, 233480), (598, 215520), (624, 206540), (690, 186784), (736, 175110), (780, 165232), (832, 154905), (897, 143680), (898, 143520), (920, 140088), (960, 134251), (1040, 123924), (1104, 116740), (1196, 107760), (1248, 103270), (1347, 95680), (1380, 93392), (1472, 87555), (1495, 86208), (1560, 82616), (1794, 71840), (1796, 71760), (1840, 70044), (2080, 61962), (2208, 58370), (2245, 57408), (2392, 53880), (2496, 51635), (2694, 47840), (2760, 46696), (2990, 43104), (3120, 41308), (3588, 35920), (3592, 35880), (3680, 35022), (4160, 30981), (4416, 29185), (4485, 28736), (4490, 28704), (4784, 26940), (5388, 23920), (5520, 23348), (5837, 22080), (5980, 21552), (6240, 20654), (6735, 19136), (7176, 17960), (7184, 17940), (7360, 17511), (8970, 14368), (8980, 14352), (9568, 13470), (10327, 12480), (10776, 11960), (11040, 11674)]

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