2005493872

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{306463}}^1$

素因数の和:306880

約数の個数: 20

約数和(自身を含む): 3895157440

約数和(自身を除く): 1889663568

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 306463, 612926, 1225852, 2451704, 4903408, 125343367, 250686734, 501373468, 1002746936, 2005493872]

約数ペア:

[(1, 2005493872), (2, 1002746936), (4, 501373468), (8, 250686734), (16, 125343367), (409, 4903408), (818, 2451704), (1636, 1225852), (3272, 612926), (6544, 306463)]