81466540

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{55799}}^1$

素因数の和:55881

約数の個数: 24

約数和(自身を含む): 173426400

約数和(自身を除く): 91959860

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 55799, 111598, 223196, 278995, 557990, 1115980, 4073327, 8146654, 16293308, 20366635, 40733270, 81466540]

約数ペア:

[(1, 81466540), (2, 40733270), (4, 20366635), (5, 16293308), (10, 8146654), (20, 4073327), (73, 1115980), (146, 557990), (292, 278995), (365, 223196), (730, 111598), (1460, 55799)]