30890804

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{7937}}^1$

素因数の和:8087

約数の個数: 24

約数和(自身を含む): 62233920

約数和(自身を除く): 31343116

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 7937, 15874, 31748, 55559, 111118, 222236, 1103243, 2206486, 4412972, 7722701, 15445402, 30890804]

約数ペア:

[(1, 30890804), (2, 15445402), (4, 7722701), (7, 4412972), (14, 2206486), (28, 1103243), (139, 222236), (278, 111118), (556, 55559), (973, 31748), (1946, 15874), (3892, 7937)]