209747480

素因数分解:

$2^3\times 5^1\times {\mathrm{5243687}}^1$

素因数の和:5243698

約数の個数: 16

約数和(自身を含む): 471931920

約数和(自身を除く): 262184440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5243687, 10487374, 20974748, 26218435, 41949496, 52436870, 104873740, 209747480]

約数ペア:

[(1, 209747480), (2, 104873740), (4, 52436870), (5, 41949496), (8, 26218435), (10, 20974748), (20, 10487374), (40, 5243687)]