28890840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:577

約数の個数: 128

約数和(自身を含む): 96940800

約数和(自身を除く): 68049960

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, 430, 440, 473, 509, 516, 645, 660, 860, 946, 1018, 1032, 1290, 1320, 1419, 1527, 1720, 1892, 2036, 2365, 2545, 2580, 2838, 3054, 3784, 4072, 4730, 5090, 5160, 5599, 5676, 6108, 7095, 7635, 9460, 10180, 11198, 11352, 12216, 14190, 15270, 16797, 18920, 20360, 21887, 22396, 27995, 28380, 30540, 33594, 43774, 44792, 55990, 56760, 61080, 65661, 67188, 83985, 87548, 109435, 111980, 131322, 134376, 167970, 175096, 218870, 223960, 240757, 262644, 328305, 335940, 437740, 481514, 525288, 656610, 671880, 722271, 875480, 963028, 1203785, 1313220, 1444542, 1926056, 2407570, 2626440, 2889084, 3611355, 4815140, 5778168, 7222710, 9630280, 14445420, 28890840]

約数ペア:

[(1, 28890840), (2, 14445420), (3, 9630280), (4, 7222710), (5, 5778168), (6, 4815140), (8, 3611355), (10, 2889084), (11, 2626440), (12, 2407570), (15, 1926056), (20, 1444542), (22, 1313220), (24, 1203785), (30, 963028), (33, 875480), (40, 722271), (43, 671880), (44, 656610), (55, 525288), (60, 481514), (66, 437740), (86, 335940), (88, 328305), (110, 262644), (120, 240757), (129, 223960), (132, 218870), (165, 175096), (172, 167970), (215, 134376), (220, 131322), (258, 111980), (264, 109435), (330, 87548), (344, 83985), (430, 67188), (440, 65661), (473, 61080), (509, 56760), (516, 55990), (645, 44792), (660, 43774), (860, 33594), (946, 30540), (1018, 28380), (1032, 27995), (1290, 22396), (1320, 21887), (1419, 20360), (1527, 18920), (1720, 16797), (1892, 15270), (2036, 14190), (2365, 12216), (2545, 11352), (2580, 11198), (2838, 10180), (3054, 9460), (3784, 7635), (4072, 7095), (4730, 6108), (5090, 5676), (5160, 5599)]