7942460

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2857}}^1$

素因数の和:3005

約数の個数: 24

約数和(自身を含む): 16805040

約数和(自身を除く): 8862580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 2857, 5714, 11428, 14285, 28570, 57140, 397123, 794246, 1588492, 1985615, 3971230, 7942460]

約数ペア:

[(1, 7942460), (2, 3971230), (4, 1985615), (5, 1588492), (10, 794246), (20, 397123), (139, 57140), (278, 28570), (556, 14285), (695, 11428), (1390, 5714), (2780, 2857)]