19902248

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{80251}}^1$

素因数の和:80288

約数の個数: 16

約数和(自身を含む): 38520960

約数和(自身を除く): 18618712

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 80251, 160502, 321004, 642008, 2487781, 4975562, 9951124, 19902248]

約数ペア:

[(1, 19902248), (2, 9951124), (4, 4975562), (8, 2487781), (31, 642008), (62, 321004), (124, 160502), (248, 80251)]