19804060

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1433}}^1$

素因数の和:2133

約数の個数: 24

約数和(自身を含む): 41677776

約数和(自身を除く): 21873716

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1433, 2764, 2866, 3455, 5732, 6910, 7165, 13820, 14330, 28660, 990203, 1980406, 3960812, 4951015, 9902030, 19804060]

約数ペア:

[(1, 19804060), (2, 9902030), (4, 4951015), (5, 3960812), (10, 1980406), (20, 990203), (691, 28660), (1382, 14330), (1433, 13820), (2764, 7165), (2866, 6910), (3455, 5732)]