399529364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{247847}}^1$

素因数の和:247895

約数の個数: 24

約数和(自身を含む): 777251328

約数和(自身を除く): 377721964

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 247847, 495694, 991388, 3222011, 6444022, 7683257, 12888044, 15366514, 30733028, 99882341, 199764682, 399529364]

約数ペア:

[(1, 399529364), (2, 199764682), (4, 99882341), (13, 30733028), (26, 15366514), (31, 12888044), (52, 7683257), (62, 6444022), (124, 3222011), (403, 991388), (806, 495694), (1612, 247847)]