2049490

素因数分解:

$2^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{659}}^1$

素因数の和:977

約数の個数: 16

約数和(自身を含む): 3706560

約数和(自身を除く): 1657070

約数列:

[1, 2, 5, 10, 311, 622, 659, 1318, 1555, 3110, 3295, 6590, 204949, 409898, 1024745, 2049490]

約数ペア:

[(1, 2049490), (2, 1024745), (5, 409898), (10, 204949), (311, 6590), (622, 3295), (659, 3110), (1318, 1555)]