1990990

素因数分解:

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

素因数の和:2043

約数の個数: 16

約数和(自身を含む): 3620448

約数和(自身を除く): 1629458

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 1933, 3866, 9665, 19330, 199099, 398198, 995495, 1990990]

約数ペア:

[(1, 1990990), (2, 995495), (5, 398198), (10, 199099), (103, 19330), (206, 9665), (515, 3866), (1030, 1933)]