205127420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{28411}}^1$

素因数の和:28458

約数の個数: 36

約数和(自身を含む): 454648824

約数和(自身を除く): 249521404

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 28411, 56822, 113644, 142055, 284110, 539809, 568220, 1079618, 2159236, 2699045, 5398090, 10256371, 10796180, 20512742, 41025484, 51281855, 102563710, 205127420]

約数ペア:

[(1, 205127420), (2, 102563710), (4, 51281855), (5, 41025484), (10, 20512742), (19, 10796180), (20, 10256371), (38, 5398090), (76, 2699045), (95, 2159236), (190, 1079618), (361, 568220), (380, 539809), (722, 284110), (1444, 142055), (1805, 113644), (3610, 56822), (7220, 28411)]