280015775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{6577}}^1$

素因数の和:6731

約数の個数: 24

約数和(自身を含む): 376840464

約数和(自身を除く): 96824689

約数列:

[1, 5, 13, 25, 65, 131, 325, 655, 1703, 3275, 6577, 8515, 32885, 42575, 85501, 164425, 427505, 861587, 2137525, 4307935, 11200631, 21539675, 56003155, 280015775]

約数ペア:

[(1, 280015775), (5, 56003155), (13, 21539675), (25, 11200631), (65, 4307935), (131, 2137525), (325, 861587), (655, 427505), (1703, 164425), (3275, 85501), (6577, 42575), (8515, 32885)]