19520240

素因数分解:

$2^4\times 5^1\times {\mathrm{244003}}^1$

素因数の和:244016

約数の個数: 20

約数和(自身を含む): 45384744

約数和(自身を除く): 25864504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244003, 488006, 976012, 1220015, 1952024, 2440030, 3904048, 4880060, 9760120, 19520240]

約数ペア:

[(1, 19520240), (2, 9760120), (4, 4880060), (5, 3904048), (8, 2440030), (10, 1952024), (16, 1220015), (20, 976012), (40, 488006), (80, 244003)]