2489600

素因数分解:

$2^8\times 5^2\times {\mathrm{389}}^1$

素因数の和:415

約数の個数: 54

約数和(自身を含む): 6177990

約数和(自身を除く): 3688390

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 389, 400, 640, 778, 800, 1280, 1556, 1600, 1945, 3112, 3200, 3890, 6224, 6400, 7780, 9725, 12448, 15560, 19450, 24896, 31120, 38900, 49792, 62240, 77800, 99584, 124480, 155600, 248960, 311200, 497920, 622400, 1244800, 2489600]

約数ペア:

[(1, 2489600), (2, 1244800), (4, 622400), (5, 497920), (8, 311200), (10, 248960), (16, 155600), (20, 124480), (25, 99584), (32, 77800), (40, 62240), (50, 49792), (64, 38900), (80, 31120), (100, 24896), (128, 19450), (160, 15560), (200, 12448), (256, 9725), (320, 7780), (389, 6400), (400, 6224), (640, 3890), (778, 3200), (800, 3112), (1280, 1945), (1556, 1600)]