31529728

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 67697280

約数和(自身を除く): 36167552

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 116, 124, 128, 137, 232, 248, 256, 274, 464, 496, 548, 899, 928, 992, 1096, 1798, 1856, 1984, 2192, 3596, 3712, 3968, 3973, 4247, 4384, 7192, 7424, 7936, 7946, 8494, 8768, 14384, 15892, 16988, 17536, 28768, 31784, 33976, 35072, 57536, 63568, 67952, 115072, 123163, 127136, 135904, 230144, 246326, 254272, 271808, 492652, 508544, 543616, 985304, 1017088, 1087232, 1970608, 3941216, 7882432, 15764864, 31529728]

約数ペア:

[(1, 31529728), (2, 15764864), (4, 7882432), (8, 3941216), (16, 1970608), (29, 1087232), (31, 1017088), (32, 985304), (58, 543616), (62, 508544), (64, 492652), (116, 271808), (124, 254272), (128, 246326), (137, 230144), (232, 135904), (248, 127136), (256, 123163), (274, 115072), (464, 67952), (496, 63568), (548, 57536), (899, 35072), (928, 33976), (992, 31784), (1096, 28768), (1798, 17536), (1856, 16988), (1984, 15892), (2192, 14384), (3596, 8768), (3712, 8494), (3968, 7946), (3973, 7936), (4247, 7424), (4384, 7192)]