208800188

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{180623}}^1$

素因数の和:180661

約数の個数: 18

約数和(自身を含む): 388160976

約数和(自身を除く): 179360788

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 180623, 361246, 722492, 3070591, 6141182, 12282364, 52200047, 104400094, 208800188]

約数ペア:

[(1, 208800188), (2, 104400094), (4, 52200047), (17, 12282364), (34, 6141182), (68, 3070591), (289, 722492), (578, 361246), (1156, 180623)]