12880687680

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{638923}}^1$

素因数の和:638953

約数の個数: 168

約数和(自身を含む): 50633449152

約数和(自身を除く): 37752761472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1440, 1680, 2016, 2240, 2520, 2880, 3360, 4032, 5040, 6720, 10080, 20160, 638923, 1277846, 1916769, 2555692, 3194615, 3833538, 4472461, 5111384, 5750307, 6389230, 7667076, 8944922, 9583845, 10222768, 11500614, 12778460, 13417383, 15334152, 17889844, 19167690, 20445536, 22362305, 23001228, 25556920, 26834766, 28751535, 30668304, 35779688, 38335380, 40252149, 40891072, 44724610, 46002456, 51113840, 53669532, 57503070, 61336608, 67086915, 71559376, 76670760, 80504298, 89449220, 92004912, 102227680, 107339064, 115006140, 122673216, 134173830, 143118752, 153341520, 161008596, 178898440, 184009824, 201260745, 204455360, 214678128, 230012280, 268347660, 286237504, 306683040, 322017192, 357796880, 368019648, 402521490, 429356256, 460024560, 536695320, 613366080, 644034384, 715593760, 805042980, 858712512, 920049120, 1073390640, 1288068768, 1431187520, 1610085960, 1840098240, 2146781280, 2576137536, 3220171920, 4293562560, 6440343840, 12880687680]

約数ペア:

[(1, 12880687680), (2, 6440343840), (3, 4293562560), (4, 3220171920), (5, 2576137536), (6, 2146781280), (7, 1840098240), (8, 1610085960), (9, 1431187520), (10, 1288068768), (12, 1073390640), (14, 920049120), (15, 858712512), (16, 805042980), (18, 715593760), (20, 644034384), (21, 613366080), (24, 536695320), (28, 460024560), (30, 429356256), (32, 402521490), (35, 368019648), (36, 357796880), (40, 322017192), (42, 306683040), (45, 286237504), (48, 268347660), (56, 230012280), (60, 214678128), (63, 204455360), (64, 201260745), (70, 184009824), (72, 178898440), (80, 161008596), (84, 153341520), (90, 143118752), (96, 134173830), (105, 122673216), (112, 115006140), (120, 107339064), (126, 102227680), (140, 92004912), (144, 89449220), (160, 80504298), (168, 76670760), (180, 71559376), (192, 67086915), (210, 61336608), (224, 57503070), (240, 53669532), (252, 51113840), (280, 46002456), (288, 44724610), (315, 40891072), (320, 40252149), (336, 38335380), (360, 35779688), (420, 30668304), (448, 28751535), (480, 26834766), (504, 25556920), (560, 23001228), (576, 22362305), (630, 20445536), (672, 19167690), (720, 17889844), (840, 15334152), (960, 13417383), (1008, 12778460), (1120, 11500614), (1260, 10222768), (1344, 9583845), (1440, 8944922), (1680, 7667076), (2016, 6389230), (2240, 5750307), (2520, 5111384), (2880, 4472461), (3360, 3833538), (4032, 3194615), (5040, 2555692), (6720, 1916769), (10080, 1277846), (20160, 638923)]