81432572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{4513}}^1$

素因数の和:4877

約数の個数: 24

約数和(自身を含む): 153945456

約数和(自身を除く): 72512884

約数列:

[1, 2, 4, 13, 26, 52, 347, 694, 1388, 4511, 4513, 9022, 9026, 18044, 18052, 58669, 117338, 234676, 1566011, 3132022, 6264044, 20358143, 40716286, 81432572]

約数ペア:

[(1, 81432572), (2, 40716286), (4, 20358143), (13, 6264044), (26, 3132022), (52, 1566011), (347, 234676), (694, 117338), (1388, 58669), (4511, 18052), (4513, 18044), (9022, 9026)]