87165040

素因数分解:

$2^4\times 5^1\times {\mathrm{1089563}}^1$

素因数の和:1089576

約数の個数: 20

約数和(自身を含む): 202658904

約数和(自身を除く): 115493864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1089563, 2179126, 4358252, 5447815, 8716504, 10895630, 17433008, 21791260, 43582520, 87165040]

約数ペア:

[(1, 87165040), (2, 43582520), (4, 21791260), (5, 17433008), (8, 10895630), (10, 8716504), (16, 5447815), (20, 4358252), (40, 2179126), (80, 1089563)]