20299725

素因数分解:

$3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1087}}^1$

素因数の和:1186

約数の個数: 36

約数和(自身を含む): 36830976

約数和(自身を除く): 16531251

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 83, 225, 249, 415, 747, 1087, 1245, 2075, 3261, 3735, 5435, 6225, 9783, 16305, 18675, 27175, 48915, 81525, 90221, 244575, 270663, 451105, 811989, 1353315, 2255525, 4059945, 6766575, 20299725]

約数ペア:

[(1, 20299725), (3, 6766575), (5, 4059945), (9, 2255525), (15, 1353315), (25, 811989), (45, 451105), (75, 270663), (83, 244575), (225, 90221), (249, 81525), (415, 48915), (747, 27175), (1087, 18675), (1245, 16305), (2075, 9783), (3261, 6225), (3735, 5435)]