995840

素因数分解:

$2^9\times 5^1\times {\mathrm{389}}^1$

素因数の和:412

約数の個数: 40

約数和(自身を含む): 2393820

約数和(自身を除く): 1397980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 389, 512, 640, 778, 1280, 1556, 1945, 2560, 3112, 3890, 6224, 7780, 12448, 15560, 24896, 31120, 49792, 62240, 99584, 124480, 199168, 248960, 497920, 995840]

約数ペア:

[(1, 995840), (2, 497920), (4, 248960), (5, 199168), (8, 124480), (10, 99584), (16, 62240), (20, 49792), (32, 31120), (40, 24896), (64, 15560), (80, 12448), (128, 7780), (160, 6224), (256, 3890), (320, 3112), (389, 2560), (512, 1945), (640, 1556), (778, 1280)]