28685855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{12721}}^1$

素因数の和:12778

約数の個数: 16

約数和(自身を含む): 38471328

約数和(自身を除く): 9785473

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 12721, 63605, 139931, 521561, 699655, 2607805, 5737171, 28685855]

約数ペア:

[(1, 28685855), (5, 5737171), (11, 2607805), (41, 699655), (55, 521561), (205, 139931), (451, 63605), (2255, 12721)]