51649460

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{13109}}^1$

素因数の和:13315

約数の個数: 24

約数和(自身を含む): 109022760

約数和(自身を除く): 57373300

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 13109, 26218, 52436, 65545, 131090, 262180, 2582473, 5164946, 10329892, 12912365, 25824730, 51649460]

約数ペア:

[(1, 51649460), (2, 25824730), (4, 12912365), (5, 10329892), (10, 5164946), (20, 2582473), (197, 262180), (394, 131090), (788, 65545), (985, 52436), (1970, 26218), (3940, 13109)]