2821780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10853}}^1$

素因数の和:10875

約数の個数: 24

約数和(自身を含む): 6382152

約数和(自身を除く): 3560372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 10853, 21706, 43412, 54265, 108530, 141089, 217060, 282178, 564356, 705445, 1410890, 2821780]

約数ペア:

[(1, 2821780), (2, 1410890), (4, 705445), (5, 564356), (10, 282178), (13, 217060), (20, 141089), (26, 108530), (52, 54265), (65, 43412), (130, 21706), (260, 10853)]