81662020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{371191}}^1$

素因数の和:371211

約数の個数: 24

約数和(自身を含む): 187080768

約数和(自身を除く): 105418748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 371191, 742382, 1484764, 1855955, 3711910, 4083101, 7423820, 8166202, 16332404, 20415505, 40831010, 81662020]

約数ペア:

[(1, 81662020), (2, 40831010), (4, 20415505), (5, 16332404), (10, 8166202), (11, 7423820), (20, 4083101), (22, 3711910), (44, 1855955), (55, 1484764), (110, 742382), (220, 371191)]