400331392

素因数分解:

$2^7\times {\mathrm{997}}^1\times {\mathrm{3137}}^1$

素因数の和:4148

約数の個数: 32

約数和(自身を含む): 798589620

約数和(自身を除く): 398258228

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 997, 1994, 3137, 3988, 6274, 7976, 12548, 15952, 25096, 31904, 50192, 63808, 100384, 127616, 200768, 401536, 3127589, 6255178, 12510356, 25020712, 50041424, 100082848, 200165696, 400331392]

約数ペア:

[(1, 400331392), (2, 200165696), (4, 100082848), (8, 50041424), (16, 25020712), (32, 12510356), (64, 6255178), (128, 3127589), (997, 401536), (1994, 200768), (3137, 127616), (3988, 100384), (6274, 63808), (7976, 50192), (12548, 31904), (15952, 25096)]