26928140

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2081}}^1$

素因数の和:2737

約数の個数: 24

約数和(自身を含む): 56663712

約数和(自身を除く): 29735572

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2081, 2588, 3235, 4162, 6470, 8324, 10405, 12940, 20810, 41620, 1346407, 2692814, 5385628, 6732035, 13464070, 26928140]

約数ペア:

[(1, 26928140), (2, 13464070), (4, 6732035), (5, 5385628), (10, 2692814), (20, 1346407), (647, 41620), (1294, 20810), (2081, 12940), (2588, 10405), (3235, 8324), (4162, 6470)]