128721878

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{18913}}^1$

素因数の和:19039

約数の個数: 16

約数和(自身を含む): 200185776

約数和(自身を除く): 71463898

約数列:

[1, 2, 41, 82, 83, 166, 3403, 6806, 18913, 37826, 775433, 1550866, 1569779, 3139558, 64360939, 128721878]

約数ペア:

[(1, 128721878), (2, 64360939), (41, 3139558), (82, 1569779), (83, 1550866), (166, 775433), (3403, 37826), (6806, 18913)]