1998515

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:326

約数の個数: 16

約数和(自身を含む): 2560800

約数和(自身を除く): 562285

約数列:

[1, 5, 19, 95, 109, 193, 545, 965, 2071, 3667, 10355, 18335, 21037, 105185, 399703, 1998515]

約数ペア:

[(1, 1998515), (5, 399703), (19, 105185), (95, 21037), (109, 18335), (193, 10355), (545, 3667), (965, 2071)]