2778140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8171}}^1$

素因数の和:8197

約数の個数: 24

約数和(自身を含む): 6178032

約数和(自身を除く): 3399892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 8171, 16342, 32684, 40855, 81710, 138907, 163420, 277814, 555628, 694535, 1389070, 2778140]

約数ペア:

[(1, 2778140), (2, 1389070), (4, 694535), (5, 555628), (10, 277814), (17, 163420), (20, 138907), (34, 81710), (68, 40855), (85, 32684), (170, 16342), (340, 8171)]