15741520

素因数分解:

$2^4\times 5^1\times {\mathrm{196769}}^1$

素因数の和:196782

約数の個数: 20

約数和(自身を含む): 36599220

約数和(自身を除く): 20857700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 196769, 393538, 787076, 983845, 1574152, 1967690, 3148304, 3935380, 7870760, 15741520]

約数ペア:

[(1, 15741520), (2, 7870760), (4, 3935380), (5, 3148304), (8, 1967690), (10, 1574152), (16, 983845), (20, 787076), (40, 393538), (80, 196769)]