497920

素因数分解:

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

素因数の和:410

約数の個数: 36

約数和(自身を含む): 1195740

約数和(自身を除く): 697820

約数列:

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

約数ペア:

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