51845920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:435

約数の個数: 144

約数和(自身を含む): 151252920

約数和(自身を除く): 99407000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 224, 238, 245, 272, 280, 340, 389, 392, 476, 490, 544, 560, 595, 680, 778, 784, 833, 952, 980, 1120, 1190, 1360, 1556, 1568, 1666, 1904, 1945, 1960, 2380, 2720, 2723, 3112, 3332, 3808, 3890, 3920, 4165, 4760, 5446, 6224, 6613, 6664, 7780, 7840, 8330, 9520, 10892, 12448, 13226, 13328, 13615, 15560, 16660, 19040, 19061, 21784, 26452, 26656, 27230, 31120, 33065, 33320, 38122, 43568, 46291, 52904, 54460, 62240, 66130, 66640, 76244, 87136, 92582, 95305, 105808, 108920, 132260, 133280, 152488, 185164, 190610, 211616, 217840, 231455, 264520, 304976, 324037, 370328, 381220, 435680, 462910, 529040, 609952, 648074, 740656, 762440, 925820, 1058080, 1296148, 1481312, 1524880, 1620185, 1851640, 2592296, 3049760, 3240370, 3703280, 5184592, 6480740, 7406560, 10369184, 12961480, 25922960, 51845920]

約数ペア:

[(1, 51845920), (2, 25922960), (4, 12961480), (5, 10369184), (7, 7406560), (8, 6480740), (10, 5184592), (14, 3703280), (16, 3240370), (17, 3049760), (20, 2592296), (28, 1851640), (32, 1620185), (34, 1524880), (35, 1481312), (40, 1296148), (49, 1058080), (56, 925820), (68, 762440), (70, 740656), (80, 648074), (85, 609952), (98, 529040), (112, 462910), (119, 435680), (136, 381220), (140, 370328), (160, 324037), (170, 304976), (196, 264520), (224, 231455), (238, 217840), (245, 211616), (272, 190610), (280, 185164), (340, 152488), (389, 133280), (392, 132260), (476, 108920), (490, 105808), (544, 95305), (560, 92582), (595, 87136), (680, 76244), (778, 66640), (784, 66130), (833, 62240), (952, 54460), (980, 52904), (1120, 46291), (1190, 43568), (1360, 38122), (1556, 33320), (1568, 33065), (1666, 31120), (1904, 27230), (1945, 26656), (1960, 26452), (2380, 21784), (2720, 19061), (2723, 19040), (3112, 16660), (3332, 15560), (3808, 13615), (3890, 13328), (3920, 13226), (4165, 12448), (4760, 10892), (5446, 9520), (6224, 8330), (6613, 7840), (6664, 7780)]