1340069870

素因数分解:

$2^1\times 5^1\times {\mathrm{643}}^1\times {\mathrm{208409}}^1$

素因数の和:209059

約数の個数: 16

約数和(自身を含む): 2415888720

約数和(自身を除く): 1075818850

約数列:

[1, 2, 5, 10, 643, 1286, 3215, 6430, 208409, 416818, 1042045, 2084090, 134006987, 268013974, 670034935, 1340069870]

約数ペア:

[(1, 1340069870), (2, 670034935), (5, 268013974), (10, 134006987), (643, 2084090), (1286, 1042045), (3215, 416818), (6430, 208409)]