3924980

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^2$

素因数の和:895

約数の個数: 18

約数和(自身を含む): 8261106

約数和(自身を除く): 4336126

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 8860, 196249, 392498, 784996, 981245, 1962490, 3924980]

約数ペア:

[(1, 3924980), (2, 1962490), (4, 981245), (5, 784996), (10, 392498), (20, 196249), (443, 8860), (886, 4430), (1772, 2215)]