18989568

素因数分解:

$2^9\times 3^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:354

約数の個数: 120

約数和(自身を含む): 59207148

約数和(自身を除く): 40217580

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 192, 208, 234, 256, 288, 312, 317, 384, 416, 468, 512, 576, 624, 634, 768, 832, 936, 951, 1152, 1248, 1268, 1536, 1664, 1872, 1902, 2304, 2496, 2536, 2853, 3328, 3744, 3804, 4121, 4608, 4992, 5072, 5706, 6656, 7488, 7608, 8242, 9984, 10144, 11412, 12363, 14976, 15216, 16484, 19968, 20288, 22824, 24726, 29952, 30432, 32968, 37089, 40576, 45648, 49452, 59904, 60864, 65936, 74178, 81152, 91296, 98904, 121728, 131872, 148356, 162304, 182592, 197808, 243456, 263744, 296712, 365184, 395616, 486912, 527488, 593424, 730368, 791232, 1054976, 1186848, 1460736, 1582464, 2109952, 2373696, 3164928, 4747392, 6329856, 9494784, 18989568]

約数ペア:

[(1, 18989568), (2, 9494784), (3, 6329856), (4, 4747392), (6, 3164928), (8, 2373696), (9, 2109952), (12, 1582464), (13, 1460736), (16, 1186848), (18, 1054976), (24, 791232), (26, 730368), (32, 593424), (36, 527488), (39, 486912), (48, 395616), (52, 365184), (64, 296712), (72, 263744), (78, 243456), (96, 197808), (104, 182592), (117, 162304), (128, 148356), (144, 131872), (156, 121728), (192, 98904), (208, 91296), (234, 81152), (256, 74178), (288, 65936), (312, 60864), (317, 59904), (384, 49452), (416, 45648), (468, 40576), (512, 37089), (576, 32968), (624, 30432), (634, 29952), (768, 24726), (832, 22824), (936, 20288), (951, 19968), (1152, 16484), (1248, 15216), (1268, 14976), (1536, 12363), (1664, 11412), (1872, 10144), (1902, 9984), (2304, 8242), (2496, 7608), (2536, 7488), (2853, 6656), (3328, 5706), (3744, 5072), (3804, 4992), (4121, 4608)]