87002020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{621443}}^1$

素因数の和:621459

約数の個数: 24

約数和(自身を含む): 208805184

約数和(自身を除く): 121803164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 621443, 1242886, 2485772, 3107215, 4350101, 6214430, 8700202, 12428860, 17400404, 21750505, 43501010, 87002020]

約数ペア:

[(1, 87002020), (2, 43501010), (4, 21750505), (5, 17400404), (7, 12428860), (10, 8700202), (14, 6214430), (20, 4350101), (28, 3107215), (35, 2485772), (70, 1242886), (140, 621443)]