206870020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1477643}}^1$

素因数の和:1477659

約数の個数: 24

約数和(自身を含む): 496488384

約数和(自身を除く): 289618364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1477643, 2955286, 5910572, 7388215, 10343501, 14776430, 20687002, 29552860, 41374004, 51717505, 103435010, 206870020]

約数ペア:

[(1, 206870020), (2, 103435010), (4, 51717505), (5, 41374004), (7, 29552860), (10, 20687002), (14, 14776430), (20, 10343501), (28, 7388215), (35, 5910572), (70, 2955286), (140, 1477643)]