19402180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{138587}}^1$

素因数の和:138603

約数の個数: 24

約数和(自身を含む): 46565568

約数和(自身を除く): 27163388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 138587, 277174, 554348, 692935, 970109, 1385870, 1940218, 2771740, 3880436, 4850545, 9701090, 19402180]

約数ペア:

[(1, 19402180), (2, 9701090), (4, 4850545), (5, 3880436), (7, 2771740), (10, 1940218), (14, 1385870), (20, 970109), (28, 692935), (35, 554348), (70, 277174), (140, 138587)]