19451640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 64733760

約数和(自身を除く): 45282120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 37, 39, 40, 52, 60, 65, 74, 78, 104, 111, 120, 130, 148, 156, 185, 195, 222, 260, 296, 312, 337, 370, 390, 444, 481, 520, 555, 674, 740, 780, 888, 962, 1011, 1110, 1348, 1443, 1480, 1560, 1685, 1924, 2022, 2220, 2405, 2696, 2886, 3370, 3848, 4044, 4381, 4440, 4810, 5055, 5772, 6740, 7215, 8088, 8762, 9620, 10110, 11544, 12469, 13143, 13480, 14430, 17524, 19240, 20220, 21905, 24938, 26286, 28860, 35048, 37407, 40440, 43810, 49876, 52572, 57720, 62345, 65715, 74814, 87620, 99752, 105144, 124690, 131430, 149628, 162097, 175240, 187035, 249380, 262860, 299256, 324194, 374070, 486291, 498760, 525720, 648388, 748140, 810485, 972582, 1296776, 1496280, 1620970, 1945164, 2431455, 3241940, 3890328, 4862910, 6483880, 9725820, 19451640]

約数ペア:

[(1, 19451640), (2, 9725820), (3, 6483880), (4, 4862910), (5, 3890328), (6, 3241940), (8, 2431455), (10, 1945164), (12, 1620970), (13, 1496280), (15, 1296776), (20, 972582), (24, 810485), (26, 748140), (30, 648388), (37, 525720), (39, 498760), (40, 486291), (52, 374070), (60, 324194), (65, 299256), (74, 262860), (78, 249380), (104, 187035), (111, 175240), (120, 162097), (130, 149628), (148, 131430), (156, 124690), (185, 105144), (195, 99752), (222, 87620), (260, 74814), (296, 65715), (312, 62345), (337, 57720), (370, 52572), (390, 49876), (444, 43810), (481, 40440), (520, 37407), (555, 35048), (674, 28860), (740, 26286), (780, 24938), (888, 21905), (962, 20220), (1011, 19240), (1110, 17524), (1348, 14430), (1443, 13480), (1480, 13143), (1560, 12469), (1685, 11544), (1924, 10110), (2022, 9620), (2220, 8762), (2405, 8088), (2696, 7215), (2886, 6740), (3370, 5772), (3848, 5055), (4044, 4810), (4381, 4440)]