205122590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{500299}}^1$

素因数の和:500347

約数の個数: 16

約数和(自身を含む): 378226800

約数和(自身を除く): 173104210

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 500299, 1000598, 2501495, 5002990, 20512259, 41024518, 102561295, 205122590]

約数ペア:

[(1, 205122590), (2, 102561295), (5, 41024518), (10, 20512259), (41, 5002990), (82, 2501495), (205, 1000598), (410, 500299)]