210378640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{138407}}^1$

素因数の和:138439

約数の個数: 40

約数和(自身を含む): 514877760

約数和(自身を除く): 304499120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 138407, 276814, 553628, 692035, 1107256, 1384070, 2214512, 2629733, 2768140, 5259466, 5536280, 10518932, 11072560, 13148665, 21037864, 26297330, 42075728, 52594660, 105189320, 210378640]

約数ペア:

[(1, 210378640), (2, 105189320), (4, 52594660), (5, 42075728), (8, 26297330), (10, 21037864), (16, 13148665), (19, 11072560), (20, 10518932), (38, 5536280), (40, 5259466), (76, 2768140), (80, 2629733), (95, 2214512), (152, 1384070), (190, 1107256), (304, 692035), (380, 553628), (760, 276814), (1520, 138407)]