20089040

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1663}}^1$

素因数の和:1827

約数の個数: 40

約数和(自身を含む): 47044608

約数和(自身を除く): 26955568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 1663, 2416, 3020, 3326, 6040, 6652, 8315, 12080, 13304, 16630, 26608, 33260, 66520, 133040, 251113, 502226, 1004452, 1255565, 2008904, 2511130, 4017808, 5022260, 10044520, 20089040]

約数ペア:

[(1, 20089040), (2, 10044520), (4, 5022260), (5, 4017808), (8, 2511130), (10, 2008904), (16, 1255565), (20, 1004452), (40, 502226), (80, 251113), (151, 133040), (302, 66520), (604, 33260), (755, 26608), (1208, 16630), (1510, 13304), (1663, 12080), (2416, 8315), (3020, 6652), (3326, 6040)]