2639990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:232

約数の個数: 32

約数和(自身を含む): 5007744

約数和(自身を除く): 2367754

約数列:

[1, 2, 5, 10, 41, 47, 82, 94, 137, 205, 235, 274, 410, 470, 685, 1370, 1927, 3854, 5617, 6439, 9635, 11234, 12878, 19270, 28085, 32195, 56170, 64390, 263999, 527998, 1319995, 2639990]

約数ペア:

[(1, 2639990), (2, 1319995), (5, 527998), (10, 263999), (41, 64390), (47, 56170), (82, 32195), (94, 28085), (137, 19270), (205, 12878), (235, 11234), (274, 9635), (410, 6439), (470, 5617), (685, 3854), (1370, 1927)]