215420380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{14939}}^1$

素因数の和:15058

約数の個数: 48

約数和(自身を含む): 522063360

約数和(自身を除く): 306642980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 7210, 14420, 14939, 29878, 59756, 74695, 104573, 149390, 209146, 298780, 418292, 522865, 1045730, 1538717, 2091460, 3077434, 6154868, 7693585, 10771019, 15387170, 21542038, 30774340, 43084076, 53855095, 107710190, 215420380]

約数ペア:

[(1, 215420380), (2, 107710190), (4, 53855095), (5, 43084076), (7, 30774340), (10, 21542038), (14, 15387170), (20, 10771019), (28, 7693585), (35, 6154868), (70, 3077434), (103, 2091460), (140, 1538717), (206, 1045730), (412, 522865), (515, 418292), (721, 298780), (1030, 209146), (1442, 149390), (2060, 104573), (2884, 74695), (3605, 59756), (7210, 29878), (14420, 14939)]