205654640

素因数分解:

$2^4\times 5^1\times {\mathrm{2570683}}^1$

素因数の和:2570696

約数の個数: 20

約数和(自身を含む): 478147224

約数和(自身を除く): 272492584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2570683, 5141366, 10282732, 12853415, 20565464, 25706830, 41130928, 51413660, 102827320, 205654640]

約数ペア:

[(1, 205654640), (2, 102827320), (4, 51413660), (5, 41130928), (8, 25706830), (10, 20565464), (16, 12853415), (20, 10282732), (40, 5141366), (80, 2570683)]