126680020

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{18149}}^1$

素因数の和:18507

約数の個数: 24

約数和(自身を含む): 266805000

約数和(自身を除く): 140124980

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 18149, 36298, 72596, 90745, 181490, 362980, 6334001, 12668002, 25336004, 31670005, 63340010, 126680020]

約数ペア:

[(1, 126680020), (2, 63340010), (4, 31670005), (5, 25336004), (10, 12668002), (20, 6334001), (349, 362980), (698, 181490), (1396, 90745), (1745, 72596), (3490, 36298), (6980, 18149)]