31981568

素因数分解:

$2^{19}\times {\mathrm{61}}^1$

素因数の和:99

約数の個数: 40

約数和(自身を含む): 65011650

約数和(自身を除く): 33030082

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 512, 976, 1024, 1952, 2048, 3904, 4096, 7808, 8192, 15616, 16384, 31232, 32768, 62464, 65536, 124928, 131072, 249856, 262144, 499712, 524288, 999424, 1998848, 3997696, 7995392, 15990784, 31981568]

約数ペア:

[(1, 31981568), (2, 15990784), (4, 7995392), (8, 3997696), (16, 1998848), (32, 999424), (61, 524288), (64, 499712), (122, 262144), (128, 249856), (244, 131072), (256, 124928), (488, 65536), (512, 62464), (976, 32768), (1024, 31232), (1952, 16384), (2048, 15616), (3904, 8192), (4096, 7808)]