51684340

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{4019}}^1$

素因数の和:4671

約数の個数: 24

約数和(自身を含む): 108732960

約数和(自身を除く): 57048620

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 4019, 6430, 8038, 12860, 16076, 20095, 40190, 80380, 2584217, 5168434, 10336868, 12921085, 25842170, 51684340]

約数ペア:

[(1, 51684340), (2, 25842170), (4, 12921085), (5, 10336868), (10, 5168434), (20, 2584217), (643, 80380), (1286, 40190), (2572, 20095), (3215, 16076), (4019, 12860), (6430, 8038)]