805909090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11512987}}^1$

素因数の和:11513001

約数の個数: 16

約数和(自身を含む): 1657870272

約数和(自身を除く): 851961182

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 11512987, 23025974, 57564935, 80590909, 115129870, 161181818, 402954545, 805909090]

約数ペア:

[(1, 805909090), (2, 402954545), (5, 161181818), (7, 115129870), (10, 80590909), (14, 57564935), (35, 23025974), (70, 11512987)]