388972004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{7451}}^1$

素因数の和:7907

約数の個数: 24

約数和(自身を含む): 704422656

約数和(自身を除く): 315450652

約数列:

[1, 2, 4, 31, 62, 124, 421, 842, 1684, 7451, 13051, 14902, 26102, 29804, 52204, 230981, 461962, 923924, 3136871, 6273742, 12547484, 97243001, 194486002, 388972004]

約数ペア:

[(1, 388972004), (2, 194486002), (4, 97243001), (31, 12547484), (62, 6273742), (124, 3136871), (421, 923924), (842, 461962), (1684, 230981), (7451, 52204), (13051, 29804), (14902, 26102)]