20899681490

素因数分解:

$2^1\times 5^1\times {\mathrm{2609}}^1\times {\mathrm{801061}}^1$

素因数の和:803677

約数の個数: 16

約数和(自身を含む): 37633892760

約数和(自身を除く): 16734211270

約数列:

[1, 2, 5, 10, 2609, 5218, 13045, 26090, 801061, 1602122, 4005305, 8010610, 2089968149, 4179936298, 10449840745, 20899681490]

約数ペア:

[(1, 20899681490), (2, 10449840745), (5, 4179936298), (10, 2089968149), (2609, 8010610), (5218, 4005305), (13045, 1602122), (26090, 801061)]