20118190

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19919}}^1$

素因数の和:20027

約数の個数: 16

約数和(自身を含む): 36573120

約数和(自身を除く): 16454930

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 19919, 39838, 99595, 199190, 2011819, 4023638, 10059095, 20118190]

約数ペア:

[(1, 20118190), (2, 10059095), (5, 4023638), (10, 2011819), (101, 199190), (202, 99595), (505, 39838), (1010, 19919)]