38945020

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14009}}^1$

素因数の和:14157

約数の個数: 24

約数和(自身を含む): 82378800

約数和(自身を除く): 43433780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 14009, 28018, 56036, 70045, 140090, 280180, 1947251, 3894502, 7789004, 9736255, 19472510, 38945020]

約数ペア:

[(1, 38945020), (2, 19472510), (4, 9736255), (5, 7789004), (10, 3894502), (20, 1947251), (139, 280180), (278, 140090), (556, 70045), (695, 56036), (1390, 28018), (2780, 14009)]