3981980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1933}}^1$

素因数の和:2045

約数の個数: 24

約数和(自身を含む): 8447712

約数和(自身を除く): 4465732

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 1933, 2060, 3866, 7732, 9665, 19330, 38660, 199099, 398198, 796396, 995495, 1990990, 3981980]

約数ペア:

[(1, 3981980), (2, 1990990), (4, 995495), (5, 796396), (10, 398198), (20, 199099), (103, 38660), (206, 19330), (412, 9665), (515, 7732), (1030, 3866), (1933, 2060)]