4298020

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{691}}^1$

素因数の和:1011

約数の個数: 24

約数和(自身を含む): 9067968

約数和(自身を除く): 4769948

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 691, 1244, 1382, 1555, 2764, 3110, 3455, 6220, 6910, 13820, 214901, 429802, 859604, 1074505, 2149010, 4298020]

約数ペア:

[(1, 4298020), (2, 2149010), (4, 1074505), (5, 859604), (10, 429802), (20, 214901), (311, 13820), (622, 6910), (691, 6220), (1244, 3455), (1382, 3110), (1555, 2764)]