13801520

素因数分解:

$2^4\times 5^1\times {\mathrm{172519}}^1$

素因数の和:172532

約数の個数: 20

約数和(自身を含む): 32088720

約数和(自身を除く): 18287200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 172519, 345038, 690076, 862595, 1380152, 1725190, 2760304, 3450380, 6900760, 13801520]

約数ペア:

[(1, 13801520), (2, 6900760), (4, 3450380), (5, 2760304), (8, 1725190), (10, 1380152), (16, 862595), (20, 690076), (40, 345038), (80, 172519)]