388640756

素因数分解:

$2^2\times 7^2\times {\mathrm{1982861}}^1$

素因数の和:1982879

約数の個数: 18

約数和(自身を含む): 791161938

約数和(自身を除く): 402521182

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1982861, 3965722, 7931444, 13880027, 27760054, 55520108, 97160189, 194320378, 388640756]

約数ペア:

[(1, 388640756), (2, 194320378), (4, 97160189), (7, 55520108), (14, 27760054), (28, 13880027), (49, 7931444), (98, 3965722), (196, 1982861)]