1999668385

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{254249}}^1$

素因数の和:254289

約数の個数: 24

約数和(自身を含む): 2840481000

約数和(自身を除く): 840812615

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 7865, 254249, 1271245, 2796739, 3305237, 13983695, 16526185, 30764129, 36357607, 153820645, 181788035, 399933677, 1999668385]

約数ペア:

[(1, 1999668385), (5, 399933677), (11, 181788035), (13, 153820645), (55, 36357607), (65, 30764129), (121, 16526185), (143, 13983695), (605, 3305237), (715, 2796739), (1573, 1271245), (7865, 254249)]