66789460

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{7607}}^1$

素因数の和:8055

約数の個数: 24

約数和(自身を含む): 140595840

約数和(自身を除く): 73806380

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 7607, 8780, 15214, 30428, 38035, 76070, 152140, 3339473, 6678946, 13357892, 16697365, 33394730, 66789460]

約数ペア:

[(1, 66789460), (2, 33394730), (4, 16697365), (5, 13357892), (10, 6678946), (20, 3339473), (439, 152140), (878, 76070), (1756, 38035), (2195, 30428), (4390, 15214), (7607, 8780)]