20830920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{367}}^1$

素因数の和:435

約数の個数: 128

約数和(自身を含む): 69949440

約数和(自身を除く): 49118520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 43, 44, 55, 60, 66, 86, 88, 110, 120, 129, 132, 165, 172, 215, 220, 258, 264, 330, 344, 367, 430, 440, 473, 516, 645, 660, 734, 860, 946, 1032, 1101, 1290, 1320, 1419, 1468, 1720, 1835, 1892, 2202, 2365, 2580, 2838, 2936, 3670, 3784, 4037, 4404, 4730, 5160, 5505, 5676, 7095, 7340, 8074, 8808, 9460, 11010, 11352, 12111, 14190, 14680, 15781, 16148, 18920, 20185, 22020, 24222, 28380, 31562, 32296, 40370, 44040, 47343, 48444, 56760, 60555, 63124, 78905, 80740, 94686, 96888, 121110, 126248, 157810, 161480, 173591, 189372, 236715, 242220, 315620, 347182, 378744, 473430, 484440, 520773, 631240, 694364, 867955, 946860, 1041546, 1388728, 1735910, 1893720, 2083092, 2603865, 3471820, 4166184, 5207730, 6943640, 10415460, 20830920]

約数ペア:

[(1, 20830920), (2, 10415460), (3, 6943640), (4, 5207730), (5, 4166184), (6, 3471820), (8, 2603865), (10, 2083092), (11, 1893720), (12, 1735910), (15, 1388728), (20, 1041546), (22, 946860), (24, 867955), (30, 694364), (33, 631240), (40, 520773), (43, 484440), (44, 473430), (55, 378744), (60, 347182), (66, 315620), (86, 242220), (88, 236715), (110, 189372), (120, 173591), (129, 161480), (132, 157810), (165, 126248), (172, 121110), (215, 96888), (220, 94686), (258, 80740), (264, 78905), (330, 63124), (344, 60555), (367, 56760), (430, 48444), (440, 47343), (473, 44040), (516, 40370), (645, 32296), (660, 31562), (734, 28380), (860, 24222), (946, 22020), (1032, 20185), (1101, 18920), (1290, 16148), (1320, 15781), (1419, 14680), (1468, 14190), (1720, 12111), (1835, 11352), (1892, 11010), (2202, 9460), (2365, 8808), (2580, 8074), (2838, 7340), (2936, 7095), (3670, 5676), (3784, 5505), (4037, 5160), (4404, 4730)]