19261520

素因数分解:

$2^4\times 5^1\times {\mathrm{240769}}^1$

素因数の和:240782

約数の個数: 20

約数和(自身を含む): 44783220

約数和(自身を除く): 25521700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240769, 481538, 963076, 1203845, 1926152, 2407690, 3852304, 4815380, 9630760, 19261520]

約数ペア:

[(1, 19261520), (2, 9630760), (4, 4815380), (5, 3852304), (8, 2407690), (10, 1926152), (16, 1203845), (20, 963076), (40, 481538), (80, 240769)]