2009798920

素因数分解:

$2^3\times 5^1\times {\mathrm{823}}^1\times {\mathrm{61051}}^1$

素因数の和:61885

約数の個数: 32

約数和(自身を含む): 4527616320

約数和(自身を除く): 2517817400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 823, 1646, 3292, 4115, 6584, 8230, 16460, 32920, 61051, 122102, 244204, 305255, 488408, 610510, 1221020, 2442040, 50244973, 100489946, 200979892, 251224865, 401959784, 502449730, 1004899460, 2009798920]

約数ペア:

[(1, 2009798920), (2, 1004899460), (4, 502449730), (5, 401959784), (8, 251224865), (10, 200979892), (20, 100489946), (40, 50244973), (823, 2442040), (1646, 1221020), (3292, 610510), (4115, 488408), (6584, 305255), (8230, 244204), (16460, 122102), (32920, 61051)]