398429480

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{733}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 913213440

約数和(自身を除く): 514783960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 127, 214, 254, 428, 508, 535, 635, 733, 856, 1016, 1070, 1270, 1466, 2140, 2540, 2932, 3665, 4280, 5080, 5864, 7330, 13589, 14660, 27178, 29320, 54356, 67945, 78431, 93091, 108712, 135890, 156862, 186182, 271780, 313724, 372364, 392155, 465455, 543560, 627448, 744728, 784310, 930910, 1568620, 1861820, 3137240, 3723640, 9960737, 19921474, 39842948, 49803685, 79685896, 99607370, 199214740, 398429480]

約数ペア:

[(1, 398429480), (2, 199214740), (4, 99607370), (5, 79685896), (8, 49803685), (10, 39842948), (20, 19921474), (40, 9960737), (107, 3723640), (127, 3137240), (214, 1861820), (254, 1568620), (428, 930910), (508, 784310), (535, 744728), (635, 627448), (733, 543560), (856, 465455), (1016, 392155), (1070, 372364), (1270, 313724), (1466, 271780), (2140, 186182), (2540, 156862), (2932, 135890), (3665, 108712), (4280, 93091), (5080, 78431), (5864, 67945), (7330, 54356), (13589, 29320), (14660, 27178)]