19902700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{6863}}^1$

素因数の和:6906

約数の個数: 36

約数和(自身を含む): 44684640

約数和(自身を除く): 24781940

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 6863, 13726, 27452, 34315, 68630, 137260, 171575, 199027, 343150, 398054, 686300, 796108, 995135, 1990270, 3980540, 4975675, 9951350, 19902700]

約数ペア:

[(1, 19902700), (2, 9951350), (4, 4975675), (5, 3980540), (10, 1990270), (20, 995135), (25, 796108), (29, 686300), (50, 398054), (58, 343150), (100, 199027), (116, 171575), (145, 137260), (290, 68630), (580, 34315), (725, 27452), (1450, 13726), (2900, 6863)]