19527980

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7127}}^1$

素因数の和:7273

約数の個数: 24

約数和(自身を含む): 41313888

約数和(自身を除く): 21785908

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7127, 14254, 28508, 35635, 71270, 142540, 976399, 1952798, 3905596, 4881995, 9763990, 19527980]

約数ペア:

[(1, 19527980), (2, 9763990), (4, 4881995), (5, 3905596), (10, 1952798), (20, 976399), (137, 142540), (274, 71270), (548, 35635), (685, 28508), (1370, 14254), (2740, 7127)]