20004580519

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2339}}^1\times {\mathrm{3583}}^1$

素因数の和:5971

約数の個数: 32

約数和(自身を含む): 25763512320

約数和(自身を除く): 5758931801

約数列:

[1, 7, 11, 31, 77, 217, 341, 2339, 2387, 3583, 16373, 25081, 25729, 39413, 72509, 111073, 180103, 275891, 507563, 777511, 797599, 1221803, 5583193, 8380637, 8552621, 58664459, 92187007, 259799747, 645309049, 1818598229, 2857797217, 20004580519]

約数ペア:

[(1, 20004580519), (7, 2857797217), (11, 1818598229), (31, 645309049), (77, 259799747), (217, 92187007), (341, 58664459), (2339, 8552621), (2387, 8380637), (3583, 5583193), (16373, 1221803), (25081, 797599), (25729, 777511), (39413, 507563), (72509, 275891), (111073, 180103)]