81519952

素因数分解:

$2^4\times {\mathrm{199}}^1\times {\mathrm{25603}}^1$

素因数の和:25810

約数の個数: 20

約数和(自身を含む): 158744800

約数和(自身を除く): 77224848

約数列:

[1, 2, 4, 8, 16, 199, 398, 796, 1592, 3184, 25603, 51206, 102412, 204824, 409648, 5094997, 10189994, 20379988, 40759976, 81519952]

約数ペア:

[(1, 81519952), (2, 40759976), (4, 20379988), (8, 10189994), (16, 5094997), (199, 409648), (398, 204824), (796, 102412), (1592, 51206), (3184, 25603)]