205489600

素因数分解:

$2^6\times 5^2\times {\mathrm{128431}}^1$

素因数の和:128453

約数の個数: 42

約数和(自身を含む): 505636784

約数和(自身を除く): 300147184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 128431, 256862, 513724, 642155, 1027448, 1284310, 2054896, 2568620, 3210775, 4109792, 5137240, 6421550, 8219584, 10274480, 12843100, 20548960, 25686200, 41097920, 51372400, 102744800, 205489600]

約数ペア:

[(1, 205489600), (2, 102744800), (4, 51372400), (5, 41097920), (8, 25686200), (10, 20548960), (16, 12843100), (20, 10274480), (25, 8219584), (32, 6421550), (40, 5137240), (50, 4109792), (64, 3210775), (80, 2568620), (100, 2054896), (160, 1284310), (200, 1027448), (320, 642155), (400, 513724), (800, 256862), (1600, 128431)]