87165020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{43151}}^1$

素因数の和:43261

約数の個数: 24

約数和(自身を含む): 184863168

約数和(自身を除く): 97698148

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 43151, 86302, 172604, 215755, 431510, 863020, 4358251, 8716502, 17433004, 21791255, 43582510, 87165020]

約数ペア:

[(1, 87165020), (2, 43582510), (4, 21791255), (5, 17433004), (10, 8716502), (20, 4358251), (101, 863020), (202, 431510), (404, 215755), (505, 172604), (1010, 86302), (2020, 43151)]