261560880

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{17299}}^1$

素因数の和:17328

約数の個数: 160

約数和(自身を含む): 1029696000

約数和(自身を除く): 768135120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 17299, 34598, 51897, 69196, 86495, 103794, 121093, 138392, 155691, 172990, 207588, 242186, 259485, 276784, 311382, 345980, 363279, 415176, 467073, 484372, 518970, 605465, 622764, 691960, 726558, 778455, 830352, 934146, 968744, 1037940, 1089837, 1210930, 1245528, 1383920, 1453116, 1556910, 1816395, 1868292, 1937488, 2075880, 2179674, 2335365, 2421860, 2491056, 2906232, 3113820, 3269511, 3632790, 3736584, 4151760, 4359348, 4670730, 4843720, 5449185, 5812464, 6227640, 6539022, 7265580, 7473168, 8718696, 9341460, 9687440, 10898370, 12455280, 13078044, 14531160, 16347555, 17437392, 18682920, 21796740, 26156088, 29062320, 32695110, 37365840, 43593480, 52312176, 65390220, 87186960, 130780440, 261560880]

約数ペア:

[(1, 261560880), (2, 130780440), (3, 87186960), (4, 65390220), (5, 52312176), (6, 43593480), (7, 37365840), (8, 32695110), (9, 29062320), (10, 26156088), (12, 21796740), (14, 18682920), (15, 17437392), (16, 16347555), (18, 14531160), (20, 13078044), (21, 12455280), (24, 10898370), (27, 9687440), (28, 9341460), (30, 8718696), (35, 7473168), (36, 7265580), (40, 6539022), (42, 6227640), (45, 5812464), (48, 5449185), (54, 4843720), (56, 4670730), (60, 4359348), (63, 4151760), (70, 3736584), (72, 3632790), (80, 3269511), (84, 3113820), (90, 2906232), (105, 2491056), (108, 2421860), (112, 2335365), (120, 2179674), (126, 2075880), (135, 1937488), (140, 1868292), (144, 1816395), (168, 1556910), (180, 1453116), (189, 1383920), (210, 1245528), (216, 1210930), (240, 1089837), (252, 1037940), (270, 968744), (280, 934146), (315, 830352), (336, 778455), (360, 726558), (378, 691960), (420, 622764), (432, 605465), (504, 518970), (540, 484372), (560, 467073), (630, 415176), (720, 363279), (756, 345980), (840, 311382), (945, 276784), (1008, 259485), (1080, 242186), (1260, 207588), (1512, 172990), (1680, 155691), (1890, 138392), (2160, 121093), (2520, 103794), (3024, 86495), (3780, 69196), (5040, 51897), (7560, 34598), (15120, 17299)]