20617728

素因数分解:

$2^9\times 3^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:485

約数の個数: 80

約数和(自身を含む): 56829696

約数和(自身を除く): 36211968

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 256, 372, 384, 433, 496, 512, 744, 768, 866, 992, 1299, 1488, 1536, 1732, 1984, 2598, 2976, 3464, 3968, 5196, 5952, 6928, 7936, 10392, 11904, 13423, 13856, 15872, 20784, 23808, 26846, 27712, 40269, 41568, 47616, 53692, 55424, 80538, 83136, 107384, 110848, 161076, 166272, 214768, 221696, 322152, 332544, 429536, 644304, 665088, 859072, 1288608, 1718144, 2577216, 3436288, 5154432, 6872576, 10308864, 20617728]

約数ペア:

[(1, 20617728), (2, 10308864), (3, 6872576), (4, 5154432), (6, 3436288), (8, 2577216), (12, 1718144), (16, 1288608), (24, 859072), (31, 665088), (32, 644304), (48, 429536), (62, 332544), (64, 322152), (93, 221696), (96, 214768), (124, 166272), (128, 161076), (186, 110848), (192, 107384), (248, 83136), (256, 80538), (372, 55424), (384, 53692), (433, 47616), (496, 41568), (512, 40269), (744, 27712), (768, 26846), (866, 23808), (992, 20784), (1299, 15872), (1488, 13856), (1536, 13423), (1732, 11904), (1984, 10392), (2598, 7936), (2976, 6928), (3464, 5952), (3968, 5196)]