338966780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{238709}}^1$

素因数の和:238789

約数の個数: 24

約数和(自身を含む): 721859040

約数和(自身を除く): 382892260

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 238709, 477418, 954836, 1193545, 2387090, 4774180, 16948339, 33896678, 67793356, 84741695, 169483390, 338966780]

約数ペア:

[(1, 338966780), (2, 169483390), (4, 84741695), (5, 67793356), (10, 33896678), (20, 16948339), (71, 4774180), (142, 2387090), (284, 1193545), (355, 954836), (710, 477418), (1420, 238709)]