19552240

素因数分解:

$2^4\times 5^1\times {\mathrm{244403}}^1$

素因数の和:244416

約数の個数: 20

約数和(自身を含む): 45459144

約数和(自身を除く): 25906904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244403, 488806, 977612, 1222015, 1955224, 2444030, 3910448, 4888060, 9776120, 19552240]

約数ペア:

[(1, 19552240), (2, 9776120), (4, 4888060), (5, 3910448), (8, 2444030), (10, 1955224), (16, 1222015), (20, 977612), (40, 488806), (80, 244403)]