81676540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{371257}}^1$

素因数の和:371277

約数の個数: 24

約数和(自身を含む): 187114032

約数和(自身を除く): 105437492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 371257, 742514, 1485028, 1856285, 3712570, 4083827, 7425140, 8167654, 16335308, 20419135, 40838270, 81676540]

約数ペア:

[(1, 81676540), (2, 40838270), (4, 20419135), (5, 16335308), (10, 8167654), (11, 7425140), (20, 4083827), (22, 3712570), (44, 1856285), (55, 1485028), (110, 742514), (220, 371257)]