20168023660

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9251387}}^1$

素因数の和:9251505

約数の個数: 24

約数和(自身を含む): 42741412560

約数和(自身を除く): 22573388900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9251387, 18502774, 37005548, 46256935, 92513870, 185027740, 1008401183, 2016802366, 4033604732, 5042005915, 10084011830, 20168023660]

約数ペア:

[(1, 20168023660), (2, 10084011830), (4, 5042005915), (5, 4033604732), (10, 2016802366), (20, 1008401183), (109, 185027740), (218, 92513870), (436, 46256935), (545, 37005548), (1090, 18502774), (2180, 9251387)]