80352440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{286973}}^1$

素因数の和:286991

約数の個数: 32

約数和(自身を含む): 206621280

約数和(自身を除く): 126268840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 286973, 573946, 1147892, 1434865, 2008811, 2295784, 2869730, 4017622, 5739460, 8035244, 10044055, 11478920, 16070488, 20088110, 40176220, 80352440]

約数ペア:

[(1, 80352440), (2, 40176220), (4, 20088110), (5, 16070488), (7, 11478920), (8, 10044055), (10, 8035244), (14, 5739460), (20, 4017622), (28, 2869730), (35, 2295784), (40, 2008811), (56, 1434865), (70, 1147892), (140, 573946), (280, 286973)]