81180290

素因数分解:

$2^1\times 5^1\times {\mathrm{2029}}^1\times {\mathrm{4001}}^1$

素因数の和:6037

約数の個数: 16

約数和(自身を含む): 146233080

約数和(自身を除く): 65052790

約数列:

[1, 2, 5, 10, 2029, 4001, 4058, 8002, 10145, 20005, 20290, 40010, 8118029, 16236058, 40590145, 81180290]

約数ペア:

[(1, 81180290), (2, 40590145), (5, 16236058), (10, 8118029), (2029, 40010), (4001, 20290), (4058, 20005), (8002, 10145)]